The Top 200 International Design Firms

THE TOP 200 INTERNATIONAL DESIGN FIRMS The Top 200 International Design Firms #19 ATKINS designed the Lotus Flower Hotel on a perfectly circular, man-made lake near Shanghai, China. The project is scheduled to be completed late this year. Some Markets Are Still Slow, But the Demand for World-Class Design Remains By Peter Reina and Gary J. Tulacz The construction market has taken a drubbing over the past three years. The market remains sluggish in the U.S., and the economic uncertainties debilitating Greece, Ireland, Italy and Portugal have thrown the European market into turmoil. However, in the rest of the world, the demand for natural resources and energy to fuel the growth of emerging countries and the need for the infrastructure to support this growth have helped mitigate the lack of work in developed countries for the largest design firms. THE TOP 200 INTERNATIONAL DESIGN FIRMS PHOTO COURTESY OF ATKINS 36 Overview 36 Market analysis 36 Past decade s analysis 37 International regions 37 Hiring 38 How the Top 200 International Design Firms shared the 2010 market 39 Top 10 by market 40 Top 10 by region 41 How to read the tables 42 The Top 200 International Design Firms 46 The Top 150 Global Design Firms 50 Index of firms enr.com July 25, 2011 ENR 35

THE TOP 200 INTERNATIONAL DESIGN FIRMS Market Analysis Buildings 15.4% Transportation 18.6% Petroleum 31.3% Industrial 7.6% Manufacturing 0.8% Telecom 0.6% Water 5.4% Sewer / Waste 3.6% Power 9.4% Hazardous Waste 3.4% Other 3.8% (% of total market) Source: McGraw-Hill Construction Research & Analytics/ENR. Comparing the Past Decade s International Revenue $17.8 2001 $18.9 2002 $21.0 2003 $24.2 2004 $26.3 2005 $33.1 2006 $43.0 2007 $52.6 2008 $52.5 2008 $57.7 2010 (in $ billions) Source: McGraw-Hill Construction Research & Analytics/ENR. 36 ENR July 25, 2011 enr.com We see... continuing demand for world-class competence. Bertrand van Ee, President, The shift in the markets for large international design firms is reflected in ENR s Top 200 International Design Firms list. As a group, the Top 200 saw a 9.9% revenue increase in 2010, to $57.66 billion from $52.45 billion in 2009, from projects outside their respective home countries. However, domestic revenue for these firms rose only 0.3%, to $59.40 billion in 2010 from $59.37 billion in 2009. Overall, the group enjoyed a 4.8% increase in overall design revenue, to $117.20 billion in 2010 from $111.81 billion in 2009. The real story is that the struggling markets in the U.S. and Europe have been offset by surges in Asia and Australia, Africa and Latin America. International revenue from projects in Asia and Australia rose 21.3% in 2010 to $13.31 billion, making that region the top regional destination for international designers. The African market, particularly in north Africa, also surged, rising 14.0% to $4.65 billion. Latin America was up 11.9%, to $3.54 billion. Europe also was up in 2010, rising 6.7% to $13.26 billion. The U.S. market also showed a gain, hitting $6.78 billion in 2010 from $6.24 billion in 2009. However, the U.S. gains are misleading. For example, since Balfour Beatty acquired New York-based engineering giant Parsons Brinckerhoff in 2009, PB s domestic U.S. revenue of $733 million now is counted as international revenue for Balfour Beatty. Without PB s contribution to Balfour Beatty s U.S. revenue, the U.S. market actually declined by 3.2% in 2010. The global financial crisis of the past few years has hurt the overall market, particularly in developed countries. There s no doubt that the recession had an impact on the capital markets and on lenders appetite for risk, says John Pearson, global managing energy director for Canada s. Many international design firms worry infrastructure projects, employed as a fiscal stimulus, will decline because of government debt concerns. With public debt problems now coming to the forefront in many countries, there is a tapering off of public infrastructure spending, and private-sector spending has not yet necessarily bounced back to the point where it is filling the gap, says Keith Reynolds, group chief executive of New Zealand s Beca Group. The recession has also meant some owners have put the brakes on projects. We have seen delays in powerplant projects and also in privately financed renewable-energy projects, says Bernd Kordes, CEO of Lahmeyer International. However, Pearson says resource-rich countries have suffered the least from the recession and have recovered the quickest. [Canada] is probably the best example of a country that had a relatively light bump in the road economically, compared to the United

Europe 23.0% Asia / Australia 23.1% #48 SINCLAIR KNIGHT MERZ acquired U.K.-based transportation engineer Colin Buchanan & Partners in June, helping the firm in the U.K. and China. International Regions Number of Firms Reporting Profit/Loss Canada 10.8% United States 11.8% Middle East 16.6% 150 140 Domestic Profits Domestic Loss International Profit 12 16 International Loss (% of total market) Source: McGraw-Hill Construction Research & Analytics/ENR. Caribbean 0.5% Latin America 6.1% Africa 8.1% Volume (in $ billions) 117.2 59.5 57.7 Domestic Revenue Domestic New Contracts International Revenue Professional Domestic Staff Hiring Professional International Staff Hiring Increase Decrease Stayed the Same (Measured in firms reporting) Source: McGraw-Hill Construction Research & Analytics/ENR. States and much of Europe, he says. Chile, Brazil and South Africa also have recovered well, he adds. The recession has caused the global market to move from developed countries to emerging nations. There has been a recent shift in economic prosperity from the Western world to the East, says Wael Allan, regional managing director for the Middle East for Hyder Consulting. He says the Western world is a mature market, with less demand for infrastructure. There are more opportunities in the East, where there are emerging markets and a much greater demand for enhanced infrastructure. These emerging markets increasingly are drawing private corporate investment to feed a growing middle class. Our clients are investing in new facilities in Russia, China, Vietnam, Indonesia and India, says Ton van der Velden, board member at Tebodin. He says countries in the Middle East are providing opportunities not just in oil and gas but in general infrastructure. The area also is becoming a consumer market, resulting in investments in all sorts of facilities [that produce] for the local market, he says. U.K. Firms Seek Stability With risks spread geographically and across sectors, large European firms report stable business with some prospect of growth. The U.K. s Arup Group, Halcrow 182 of the Top 200 sent in surveys last year. 61.5 % had increased international revenue in 2010. 37.9 % had lower revenue, while one was unchanged. Group and Mott MacDonald Group see little change in sales over last year, though profits have dipped. Mott s managing director, Richard Williams, attributes the company s consistency, despite the European recession, to its geographical spread. Demand in Asia and Latin America compensates for weakening European and U.S. orders, adds Halcrow s business development director, Mark Brown. Facing excess European design capacity, DHV Group is on a two-year program to cut staff in its Netherlands base by 25%, to 1,800, by year s end, says company President Bertrand van Ee. DHV global staffing will shrink at a slower pace, to around 5,200 employees from 5,500. We see continuing high demand for world-class competence, he says. U.K.-based W.S. plc last month reported a 12.7% rise on global sales. Our strategy is working. We are keeping to our core business, says CEO Keith Clarke, who retires this month. Lars-Peter Søbye, CEO of Denmark s Cowi A/S, is also bullish. Business is now much better than in 2010, he says. I expect growth to pick up. The nearby Nordic market is robust, and Søbye sees growth globally in transportation. Although Arup s margins are down, its sales are doing better, says Chairman Philip Dilley, who forecasts modest improvement. With increasing mergers and enr.com July 25, 2011 ENR 37

THE TOP 200 INTERNATIONAL DESIGN FIRMS acquisitions, the marketplace is changing very rapidly, he adds. Arup will not grow through acquisitions, says Dilley. He sees alliances as a way to achieve a necessary operational scale. Last month, Arup took a major step along this route, signing a memorandum of understanding with China Railway Group for bids in Africa, the Middle East, South America and Southeast Asia. The agreement will boost China Railway s ambition for global growth in the years ahead, notes the company s international general manager, Chen Zhigong The slowdown in established markets in Europe and the U.S. has caused many Western firms to look at the developing markets in Asia, Africa and Latin America. But this shift has caused some concern for firms already in those markets. For example, the biggest worry about the international market for Australia s is increased competition from established companies in the U.K. and U.S.A. into markets, says Ross Hitt, CEO. Aurecon a 2009 merger between Connell Wagner, Australia, and Africon and Ninham Shand, both of South Africa managed to diversify while spreading the risk of economic downturns. The merger helped reduce the risk by increasing global diversification and enabling greater access to growing economies, especially in the developing world, says Paul Lombard, Aurecon s general manager, emerging regions. The one bright spot for many global design firms is the flourishing market in natural resources. Commodity prices are solid, and our clients are going forward with their development plans to pull ore out of [The challenge in India] is sorting out the one job that is going to happen from the 15 that do not. Philip Dilley, Chairman, Arup Group the ground and get it to market as efficiently as possible, says Pearson. He says the surge in the mining and metals market also requires energy upgrades and infrastructure investments as the facilities need power and the products need to be transported. This increase in commodity prices has helped sophisticated firms in the metals and mining market. Often these projects are located in difficult-to-reach areas that are engineering-intensive, says Reynolds. Mixed Signals on China In China, Arup is doing brilliantly, says Dilley. The firm has increased its bases to six cities from three cities. But the market remains elusive for many firms, notes Mott s Williams. Mott MacDonald is doing well on high-speed rail projects, he says. [In China], you need to be a niche player, opines Van Ee. DHV is selling water treatment technology and, this month, won the master-plan design competition for a vast domestic airport in Beijing. Able to handle 130 million passengers a year, the airport will have four large terminals. India is increasingly seen as a larger prospect than China. India continues to see growth, says van Ee, highlighting public-private highway projects. Cowi aims to expand its mapping business into engineering, says Søbye. For Arup s young business in India, the challenge is sorting out the one job that s going to happen from the 15 that don t, says Dilley. Getting work in India has its drawbacks. There was a big increase in [international] competition when Dubai started to suffer its problems, says Halcrow s HOW THE TOP INTERNATIONAL DESIGN FIRMS SHARED THE 2010 MARKET DESIGNER NATIONALITY # OF INT'L REVENUE MIDDLE EAST ASIA AFRICA EUROPE UNITED STATES CANADA LAT. AMER / CARIB. FIRMS $ MIL. % $ MIL. % $ MIL. % $ MIL. % $ MIL. % $ MIL. % $ MIL. % $ MIL. % AMERICAN 65 17,868.7 31.0 2,692.6 28.2 5,596.2 42.0 1,092.5 23.5 4,233.3 31.8 NA NA 3,200.1 51.4 1,064.0 27.7 CANADIAN 8 4,167.4 7.2 368.4 3.9 715.9 5.4 675.4 14.5 501.4 3.8 1,326.8 19.6 NA NA 579.5 15.1 EUROPEAN 64 23,247.7 40.3 3,182.2 33.3 3,334.2 25.0 1,425.5 30.7 7,870.2 59.3 3,892.5 57.4 2,063.6 33.2 1,479.5 38.5 BRITISH 10 8,402.8 14.6 1,105.7 11.6 1,810.4 13.6 436.8 9.4 1,303.3 9.8 1,727.9 25.5 1,832.1 29.4 186.6 4.9 GERMAN 7 517.6 0.9 144.0 1.5 78.3 0.6 115.0 2.5 156.8 1.2 1.5 0.0 0.0 0.0 22.1 0.6 FRENCH 8 2,066.9 3.6 317.5 3.3 517.8 3.9 381.1 8.2 492.3 3.7 127.6 1.9 21.8 0.4 208.7 5.4 DUTCH 6 6,293.4 10.9 274.8 2.9 524.4 3.9 214.7 4.6 2,770.6 20.9 1,929.7 28.5 134.8 2.2 444.4 11.6 ITALIAN 11 859.6 1.5 205.3 2.1 110.6 0.8 87.1 1.9 231.8 1.7 2.3 0.0 4.2 0.1 218.3 5.7 SPANISH 8 1,722.9 3.0 726.0 7.6 95.7 0.7 38.4 0.8 603.2 4.5 37.3 0.5 27.6 0.4 194.7 5.1 OTHER EUROPEAN 14 3,384.4 5.9 408.9 4.3 197.0 1.5 152.4 3.3 2,312.2 17.4 66.2 1.0 43.2 0.7 204.5 5.3 AUSTRALIAN 10 4,651.2 8.1 753.9 7.9 895.3 6.7 209.9 4.5 489.5 3.7 1,069.9 15.8 912.9 14.7 319.8 8.3 JAPANESE 10 1,197.9 2.1 432.7 4.5 504.7 3.8 139.9 3.0 10.3 0.1 17.6 0.3 0.0 0.0 92.6 2.4 CHINESE 21 2,159.9 3.7 404.4 4.2 1,008.2 7.6 467.1 10.0 31.8 0.2 4.5 0.1 1.5 0.0 242.4 6.3 KOREAN 6 472.2 0.8 226.9 2.4 151.3 1.1 59.5 1.3 10.8 0.1 6.9 0.1 0.5 0.0 16.4 0.4 ALL OTHERS 16 3,860.4 6.7 1,496.2 15.7 1,108.0 8.3 578.3 12.4 124.2 0.9 457.4 6.8 43.8 0.7 52.5 1.4 ALL FIRMS 200 57,625.4 100.0 9,557.4 100.0 13,313.8 100.0 4,648.0 100.0 13,261.6 100.0 6,775.6 100.0 6,222.4 100.0 3,846.6 100.0 SOURCE: ENR. NOTE: EXCLUDING $37.9 MILLION FROM ANTARCTIC / ARCTIC 38 ENR July 25, 2011 enr.com

The Top 10 by Market #81 ARTELIA is the new name of French-based engineering firms Coteba and Sogreah, which finalized their merger in March 2010. 1 RANK 2011 2010 PETROLEUM Top 10 Revenue: $12,653.1 Mil. Sector's Revenue: $18,067.2 Mil. 1 2 WORLEYPARSONS 2 1 FUGRO NV 3 4 4 7 AMEC PLC 5 5 TECNICAS REUNIDAS 6 3 FLUOR CORP. 7 6 JACOBS 8 8 TECHNIP 9 10 BECHTEL 10 ** JGC CORP. 2 RANK 2011 2010 TRANSPORTATION Top 10 Revenue: $4,990.6 Mil. Sector's Revenue: $10,709.2 Mil. 1 ** BALFOUR BEATTY 2 1 AECOM TECHNOLOGY CORP. 3 2 LOUIS BERGER GROUP 4 3 DAR AL-HANDASAH CONSULTANTS 5 4 EGIS 6 9 ARUP GROUP LTD. 7 5 MOTT MACDONALD GROUP LTD. 8 ** ATKINS 9 10 10 8 3 RANK 2011 2010 BUILDING Top 10 Revenue: $4,118.3 Mil. Sector's Revenue: $8,868.5 Mil. 1 1 DAR AL-HANDASAH CONSULTANTS 2 2 AECOM TECHNOLOGY CORP. 3 4 ARUP GROUP LTD. 4 5 WSP GROUP PLC 5 6 ARCADIS NV 6 7 FUGRO NV 7 9 ATKINS 8 8 RAMBOLL GROUP A/S 9 ** GRONTMIJ NV 10 ** AEDAS 4 RANK 2011 2010 POWER Top 10 Revenue: $2,598.9 Mil. Sector's Revenue: $5,423.9 Mil. 1 1 WORLEYPARSONS 2 2 AMEC PLC 3 9 CHINA CHENGDA ENGINEERING CO. LTD. 4 3 SNC-LAVALIN INTERNATIONAL INC. 5 ** JACOBS 6 4 POYRY 7 6 8 8 AECOM TECHNOLOGY CORP. 9 ** BLACK & VEATCH 10 ** BALFOUR BEATTY 5 RANK 2011 2010 INDUSTRIAL Top 10 Revenue: $3,528.7 Mil. Sector's Revenue: $4,381.1 Mil. 1 2 FLUOR CORP. 2 1 SNC-LAVALIN INTERNATIONAL INC. 3 7 JACOBS 4 3 HATCH GROUP 5 4 BECHTEL 6 5 POYRY 7 ** AURECON 8 9 AMEC PLC 9 ** ARCADIS NV 10 ** WSP GROUP PLC 6 RANK 2011 2010 WATER Top 10 Revenue: $1,556.9 Mil. Sector's Revenue: $3,137.8 Mil. 1 2 ARCADIS NV 2 8 GRONTMIJ NV 3 3 MWH GLOBAL 4 1 AECOM TECHNOLOGY CORP. 5 4 SNC-LAVALIN INTERNATIONAL INC. 6 5 MOTT MACDONALD GROUP LTD. 7 ** BALFOUR BEATTY 8 7 STANTEC INC. 9 9 LOUIS BERGER GROUP 10 ** TETRA TECH INC. 7 RANK 2011 2010 SEWER / WASTE Top 10 Revenue: $1,087.6 Mil. Sector's Revenue: $2,089.3 Mil. 1 2 AECOM TECHNOLOGY CORP. 2 1 MWH GLOBAL 3 8 4 3 MOTT MACDONALD GROUP LTD. 5 4 GOLDER ASSOCIATES CORP. 6 10 ARCADIS NV 7 5 LOUIS BERGER GROUP 8 ** GHD PTY. LTD. 9 7 BLACK & VEATCH 10 ** STANTEC INC. 8 RANK 2011 2010 HAZARDOUS WASTE Top 10 Revenue: $1,839.2 Mil. Sector's Revenue: $1,985.8 Mil. 1 1 ARCADIS NV 2 2 AECOM TECHNOLOGY CORP. 3 4 URS CORP. 4 5 STANTEC INC. 5 7 6 8 TETRA TECH INC. 7 ** CARDNO 8 ** AMEC PLC 9 9 CONESTOGA-ROVERS & ASSOCIATES 10 10 ATKINS 9 RANK 2011 2010 MANUFACTURING Top 10 Revenue: $331.6 Mil. Sector's Revenue: $434.2 Mil. 1 1 GOLDER ASSOCIATES CORP. 2 6 ARUP GROUP LTD. 3 7 URS CORP. 4 3 ARCADIS NV 5 2 6 ** SUMITOMO MITSUI CONSTRUCTION CO. LTD. 7 ** LARSEN & TOUBRO LTD. 8 8 TEBODIN CONSULTANTS & ENGINEERS 9 ** AURECON 10 ** Brown, who says the firm is investing heavily in India. Among other positive markets, Australia is booming on the back of natural-resource exports to China, says Mott s Williams. Anything connected with commodities is doing brilliantly, agrees Dilley. But the domestic economy is not so good. However, many firms believe Australia has great potential beyond natural resources. Australia has an On the Web For expanded content on all ENR lists, see enr.com/ toplists. attractive business environment, offers good local project financing options and has enormous infrastructure development potential, says Reynolds. Latin America also is attracting new interest. Arup has set up a small office in Brazil, which has a difficult commercial environment, says Dilley. The company plans to persevere but with caution, he says. Halcrow is building on its long presence in Argentina to grow in the region, says Brown. Halcrow is a enr.com July 25, 2011 ENR 39

THE TOP 200 INTERNATIONAL DESIGN FIRMS The Top 10 by Region 1 RANK 2011 2010 ASIA Top 10 Revenue: $5,639.1 Mil. Sector's Revenue: $13,313.8 Mil. 1 1 AECOM TECHNOLOGY CORP. 2 2 3 8 FLUOR CORP. 4 ** AURECON 5 5 BECHTEL 6 ** BALFOUR BEATTY 7 9 ARUP GROUP LTD. 8 3 FUGRO NV 9 ** URS CORP. 10 ** CHINA CHENGDA ENGINEERING CO. LTD. 2 RANK 2011 2010 EUROPE Top 10 Revenue: $6,815.2 Mil. Sector's Revenue: $13,261.6 Mil. 1 1 FUGRO NV 2 2 JACOBS 3 4 GRONTMIJ NV 4 5 RAMBOLL GROUP A/S 5 6 AECOM TECHNOLOGY CORP. 6 3 FLUOR CORP. 7 7 POYRY 8 8 ARCADIS NV 9 ** TECNICAS REUNIDAS 10 ** WSP GROUP PLC 3 RANK 2011 2010 MIDDLE EAST Top 10 Revenue: $4,320.0 Mil. Sector's Revenue: $9,557.4 Mil. 1 1 DAR AL-HANDASAH CONSULTANTS 2 2 TECNICAS REUNIDAS 3 ** WORLEYPARSONS 4 ** JGC CORP. 5 7 AECOM TECHNOLOGY CORP. 6 ** SINOPEC ENGINEERING INC. 7 6 8 4 SNC-LAVALIN INTERNATIONAL INC. 9 9 MOTT MACDONALD GROUP LTD. 10 5 FLUOR CORP. 4 RANK 2011 2010 UNITED STATES Top 10 Revenue: $5,442.7 Mil. Sector's Revenue: $6,775.6 Mil. 1 1 ARCADIS NV 2 9 BALFOUR BEATTY 3 4 STANTEC INC. 4 3 WORLEYPARSONS 5 5 FUGRO NV 6 6 DAR AL-HANDASAH CONSULTANTS 7 ** ATKINS 8 ** CARDNO LTD. 9 7 MOTT MACDONALD GROUP LTD. 10 10 GOLDER ASSOCIATES CORP. 5 RANK 2011 2010 CANADA Top 10 Revenue: $5,084.7 Mil. Sector's Revenue: $6,222.4 Mil. 1 1 AMEC PLC 2 2 WORLEYPARSONS 3 3 JACOBS 4 4 AECOM TECHNOLOGY CORP. 5 5 6 7 BECHTEL 7 8 FLUOR CORP. 8 9 TETRA TECH INC. 9 10 MOTT MACDONALD GROUP LTD. 10 6 URS CORP. 6 RANK 2011 2010 AFRICA Top 10 Revenue: $2,205.5 Mil. Sector's Revenue: $4,648.0 Mil. 1 1 SNC-LAVALIN INTERNATIONAL INC. 2 2 3 ** AURECON 4 3 DAR AL-HANDASAH CONSULTANTS 5 4 EGIS 6 ** AMEC PLC 7 5 MOTT MACDONALD GROUP LTD. 8 ** ANHUI FOREIGN ECONOMIC CONSTR. GROUP 9 7 HATCH GROUP 10 9 DHV GROUP 7 RANK 2011 2010 LATIN AMERICA / CARIBBEAN Top 10 Revenue: $1,906.9 Mil. Sector's Revenue: $3,846.6 Mil. 1 4 SNC-LAVALIN INTERNATIONAL INC. 2 2 FLUOR CORP. 3 3 ARCADIS NV 4 ** CHINA RAILWAY GROUP LTD. 5 6 FUGRO NV 6 7 TECHNIP 7 9 BECHTEL 8 1 AMEC PLC 9 10 WORLEYPARSONS 10 ** MAIRE TECNIMONT SPA Number of Firms Reporting Domestic Backlog 51 19 28 Increase Decrease Stayed the same Source: McGraw-Hill Construction Research & Analytics/ENR. Number of Firms Reporting International Backlog 92 25 53 Increase Decrease Stayed the same Source: McGraw-Hill Construction Research & Analytics/ENR. the government adviser on the Rio-São Paulo highspeed-rail project. Resiliency in Middle East Despite political unrest, the Middle East is resilient, says Brown. Halcrow repatriated seven staff members from Libya, but we are in a number of sectors in quite a few countries, he adds. Søbye says the unrest delayed projects, such as the Bahrain-Qatar causeway. Public 40 ENR July 25, 2011 enr.com On the Web To find out the countries where firms worked in 2010 see enr.com/ toplists. procurement in Oman is at a standstill, he adds. Many Middle Eastern countries have active markets. Abu Dhabi and Qatar are the two places with promise, says Dilley, noting increasing competition. We are not bidding to win the work at any cost. regional order book is beyond excellent, says Clarke. There is very strong planned economic growth now in the Middle East in infrastructure. has been recovering delayed payments, he adds.

#01 WORLEYPARSONS topped the ENR Top 200 for the first time, riding the surge in demand for energy-related projects around the world. The Middle East s growing population will require a lot of investment in infrastructure, and the demand is great in all aspects of life, says Allan of Hyder. He says that while the U.A.E. is steady, there are great opportunities in Qatar and Saudi Arabia. Fuelled by natural-resource exports, Mozambique is undergoing unbelievable growth, says van Ee. From struggling to find work for 30 staff members two years ago, DHV now has 90 people at work in Mozambique, he adds. Our Africa division has been the fastest-growing division, adds Hitt of. U.S. Continues To Attract Though the U.S. has poor finances, it retains European interest. DHV finds the aviation sector attractive. [North America] will go from strength to strength, adds Cowi s Søbye. Arup is maintaining its U.S. workload, helped by large transportation infrastructure projects. Commercial work is down, but Arup has won several jobs for cultural buildings, says Dilley. already is shipping work to its U.S. acquisition, Florida-based PBSJ Corp., notably from Saudi Arabia, says Clarke. Now named North America, PBSJ has undergone quite radical change at the top but has lost few of its core staff, he adds. The picture is mixed in Europe. Apart from the Nordic region and the U.K., Cowi has little work in [In Australia] anything connected with commodities is doing brilliantly. Richard Williams, Managing Director, Mott MacDonald Group. ISLAND GETAWAY Mott MacDonald won the planning and engineering contract for the Male International Airport expansion in the Maldive Islands. Western Europe, says Søbye. The firm aims to be even more focused on selected countries in Eastern Europe. The Russian market is OK, but the business environment is quite difficult, Søbye adds. European public spending will continue to be down for the near future, says van Ee. He expects privatization, especially in Portugal and Greece, to generate high-level advisory work. Poland continues to struggle with its infrastructure projects, he adds. The U.K. government is cutting budgets deeply but has listened to the need to keep some [infrastructure] investment going, says Williams. Arup s Dilley reports ample transportation infrastructure work and a reviving commercial market in London. The current market has forced design firms to become responsive to quick market changes. Few firms on the Top 200 were tested this year more than New Zealand s Beca Group. Reynolds says the firm s work on search-and-rescue, damage assessment and the initial rebuild in the wake of February s devastating earthquake in Christchurch, New Zealand, reinforced the need for us to maintain flexibility and fluidity in our decision-making to enable us to react quickly to rapidly changing and developing events. PHOTO COURTESY OF MOTT MACDONALD How To Read the Tables Companies are ranked according to revenue for design services performed in 2010 in $ millions (*). Those with subsidiaries are indicated by ( ). For information on subsidiaries and where each firm worked outside of the U.S., see www.enr.com. **Firms not ranked last year. Some markets may not add up to 100% due to omission of "other" miscellaneous market category and rounding. NA-Not available. Key to type of firm A-architect; E-engineer; EC-engineer-contractor; AE-architect-engineer; EA-engineerarchitect; ENV-environmental; GE-geotechnical engineer; L-landscape architect; P-planner; O-other. Other combinations possible. Firms classified themselves. General Building includes commerical buildings, offices, stores, educational facilities, government buildings, hospitals, medical facilities, hotels, apartments, housing, etc. Manufacturing includes auto, electronic assembly, textile plants, etc. Power comprises thermal and hydroelectric powerplants, waste-to-energy plants, transmission lines, substations, cogeneration plants, etc. Water Supply includes dams, reservoirs, transmission pipelines, distribution mains, irrigation canals, desalination and potability treatment plants, pumping stations, etc. Sewage/Solid Waste includes sanitary and storm sewers, treatment plants, pumping plants, incinerators, industrial waste facilities, etc. Industrial Process includes pulp and paper mills, steel mills, non-ferrous metal refineries, pharmaceutical plants, chemical plants, food and other processing plants, etc. Petroleum comprises refineries, petrochemical plants, offshore facilities, pipelines, etc. Transportation includes airports, bridges, roads, canals, locks, dredging, marine facilities, piers, railroads, tunnels, etc. Hazardous Waste includes chemical and nuclear-waste treatment, asbestos and lead abatement, etc. Telecommunications includes transmission lines and cabling, towers and antennae, data centers, etc. enr.com July 25, 2011 ENR 41

THE TOP 200 INTERNATIONAL DESIGN FIRMS The Top 200 List RANK 2011 2010 FIRM TYPE 2010 INT'L REVENUE IN $ MIL. % OF TOTAL REV. 1 2 WORLEYPARSONS, North Sydney, NSW, Australia EC 2,850.6 78 0 0 14 0 0 81 1 0 0 2 1 FUGRO NV, Leidschendam, The Netherlands GE 2,826.0 94 11 0 3 1 0 76 5 0 1 3 3 AECOM TECHNOLOGY CORP., Los Angeles, Calif., U.S.A. EA 2,629.0 44 29 0 8 8 11 0 34 11 0 4 5 AMEC PLC, London, U.K. E 2,456.0 72 3 0 13 2 1 60 3 2 0 5 7 JACOBS, Pasadena, Calif., U.S.A. EAC 2,256.3 48 7 0 12 2 1 68 9 0 0 6 6 ARCADIS NV, Amsterdam, The Netherlands E 2,122.0 80 15 2 2 18 3 5 12 43 0 7 4 FLUOR CORP., Irving, Texas, U.S.A. EC 2,057.6 66 0 0 3 0 0 96 0 0 0 8 9 DAR AL-HANDASAH CONSULTANTS (SHAIR & PARTNERS), Cairo, Egypt EA 1,776.6 100 55 0 1 3 3 11 28 0 0 9 10, Houston, Texas, U.S.A. EC 1,737.9 86 0 0 5 3 0 81 9 0 0 10 8 SNC-LAVALIN INTERNATIONAL INC., Montreal, Quebec, Canada EC 1,670.9 59 11 0 18 8 0 57 6 0 0 11 43 BALFOUR BEATTY, London, U.K. EC 1,461.8 84 14 0 11 6 1 0 68 0 0 12 11 TECNICAS REUNIDAS, Madrid, Spain EC 1,292.0 96 0 0 6 1 0 92 0 0 0 13 12 BECHTEL, San Francisco, Calif., U.S.A. EC 1,220.0 56 0 0 4 0 0 84 6 0 0 14 13 MOTT MACDONALD GROUP LTD., Croydon, Surrey, U.K. E 1,116.3 69 15 0 7 10 9 23 33 1 1 15 18 ARUP GROUP LTD., London, U.K. E 959.0 70 43 5 0 1 1 4 40 2 2 16 24 URS CORP., San Francisco, Calif., U.S.A. EAC 937.3 19 8 5 4 5 4 21 21 25 1 17 62 AURECON, Singapore E 929.7 99 17 2 6 7 3 26 27 0 4 18 15 TECHNIP, Paris, France EC 910.0 99 0 0 0 0 0 100 0 0 0 19 29 ATKINS, Epsom, Surrey, U.K. EA 894.0 42 31 1 4 6 2 12 41 3 2 20 16, Englewood, Colo., U.S.A. EA 891.3 25 15 4 3 5 13 39 12 8 0 21 27 GRONTMIJ NV, De Bilt, The Netherlands E 834.9 69 29 0 0 28 0 0 19 0 13 22 19 HATCH GROUP, Mississauga, Ontario, Canada E 750.0 60 0 0 4 4 3 60 24 0 0 23 22 WSP GROUP PLC, London, U.K. E 742.6 68 46 0 4 0 3 12 26 1 1 24 30 GOLDER ASSOCIATES CORP., Mississauga, Ontario, Canada E 715.1 65 0 9 8 5 14 15 6 1 0 25 21 POYRY, Vantaa, Finland E 711.0 79 1 0 31 4 7 34 23 0 0 26 25 RAMBOLL GROUP A/S, Copenhagen, Denmark E 701.0 65 38 1 6 4 3 13 30 1 5 27 17 LOUIS BERGER GROUP, Morristown, N.J., U.S.A. EAP 691.6 60 1 0 6 10 9 0 74 0 0 28 31 STANTEC INC., Edmonton, Alberta, Canada EALP 606.3 42 18 0 7 13 9 6 23 22 0 29 26 JGC CORP., Yokohama, Japan EC 596.0 83 0 0 0 0 0 100 0 0 0 30 20, The Woodlands, Texas, U.S.A. EC 554.9 92 0 0 0 0 0 100 0 0 0 31 32, Kongens Lyngby, Denmark E 534.2 67 22 0 0 2 8 0 54 1 0 32 28 THE SHAW GROUP INC., Baton Rouge, La., U.S.A. EC 532.7 44 1 0 27 0 0 72 0 0 0 33 33 EGIS, Saint Quentin en Yvelines, France EC 492.8 46 3 0 2 5 0 2 85 0 0 34 34 MWH GLOBAL, Broomfield, Colo., U.S.A. EC 470.0 51 0 0 10 44 41 0 5 0 0 35 ** CARDNO LTD., Brisbane, Queensland, Australia O 397.0 64 3 0 6 4 1 36 16 12 0 36 35 HALCROW GROUP LTD., London, U.K. E 391.2 53 16 0 2 8 10 4 60 0 0 37 42 CHINA CHENGDA ENGINEERING CO. LTD., Chengdu, Sichuan, China EC 385.5 39 0 0 82 0 0 18 0 0 0 38 **, Stockholm, Sweden E 350.3 44 42 0 13 10 5 14 15 0 0 39 46 MAIRE TECNIMONT SPA, Rome, Italy EC 338.9 96 0 0 33 0 0 67 0 0 0 40 47 AF AB, Stockholm, Sweden E 336.4 42 15 2 65 0 0 12 5 0 0 41 40 BLACK & VEATCH, Overland Park, Kan., U.S.A. EC 322.1 29 0 0 55 21 17 5 0 0 0 42 ** HYDER CONSULTING, London, U.K. E 322.1 71 33 0 0 3 7 0 53 0 0 43 39 DHV GROUP, Amersfoort, The Netherlands E 318.6 51 11 0 4 17 8 1 52 0 0 44 37 SINOPEC ENGINEERING INC., Beijing, China EC 315.6 34 0 0 0 0 0 100 0 0 0 45 41, Paris, France E 283.2 81 0 0 0 0 0 0 100 0 0 46 52 TETRA TECH INC., Pasadena, Calif., U.S.A. E 279.0 13 4 0 22 25 9 12 10 18 0 47 54 AEDAS, New York, N.Y., U.S.A. A 261.7 86 89 0 0 0 0 0 11 0 0 48 49 SINCLAIR KNIGHT MERZ, St. Leonards, NSW, Australia E 261.6 27 11 0 19 1 2 10 8 1 0 49 95 CTCI CORP., Taipei, Taiwan EC 259.6 72 0 0 3 0 0 83 14 0 0 50 45 KHATIB & ALAMI, Beirut, Lebanon AE 258.6 95 45 0 3 11 8 10 19 0 0 GENERAL BUILDING MANUFACTURING POWER WATER SUPPLY SEWER / WASTE INDUS. / PETROLEUM TRANSPORTATION HAZARDOUS WASTE TELECOM. 42 ENR July 25, 2011 enr.com

#11 BALFOUR BEATTY had a big jump in rankings, to No. 11 from No. 43, thanks to its 2009 acquisition of U.S.-based Parsons Brinckerhoff. RANK 2011 2010 FIRM TYPE 2010 INT'L REVENUE IN $ MIL. % OF TOTAL REV. 51 36 MCDERMOTT INTERNATIONAL INC., Houston, Texas, U.S.A. EC 254.9 100 0 0 0 0 0 100 0 0 0 52 152 CHINA RAILWAY GROUP LTD., Beijing, China EC 247.2 22 0 0 0 0 0 0 100 0 0 53 50 PARSONS, Pasadena, Calif., U.S.A. EC 246.0 21 6 0 0 6 17 7 56 5 3 54 69 HYUNDAI ENGINEERING CO. LTD., Seoul, S. Korea EC 243.0 68 0 0 26 1 12 60 0 0 0 55 70 EXP, Brampton, Ontario, Canada EA 228.1 42 57 0 0 1 1 17 13 0 8 56 51 COFFEY INTERNATIONAL, Sydney, NSW, Australia GE 207.9 40 20 0 8 2 5 0 5 2 0 57 38 SAIPEM, San Donato Milanese (Milan), Italy EC 206.9 26 0 0 3 0 0 97 0 0 0 58 60 NIPPON KOEI GROUP, Tokyo, Japan E 206.0 36 1 0 14 8 8 0 28 1 0 59 53 WL MEINHARDT GROUP PTY. LTD., Melbourne, Victoria, Australia EA 204.1 81 49 5 2 6 9 2 24 0 3 60 58 GHD PTY. LTD., Sydney, NSW, Australia E 204.0 22 28 0 1 15 28 0 20 5 0 61 59 AUSENCO, South Brisbane, Queensland, Australia E 202.7 83 3 2 5 3 7 37 14 0 0 62 73 MUSTANG ENGINEERING, Houston, Texas, U.S.A. EC 202.7 30 0 0 0 0 0 100 0 0 0 63 55, St. Louis, Mo., U.S.A. AE 196.3 42 77 0 0 0 0 0 23 0 0 64 ** TRACTEBEL ENGINEERING GDF-SUEZ, Brussels, Belgium E 195.0 56 13 0 81 4 0 0 3 0 0 65 61 FICHTNER GMBH & CO. KG, Stuttgart, Germany E 188.0 70 1 0 73 8 13 3 1 0 1 66 57 ILF CONSULTING ENGINEERS, Rum/Innsbruck, Austria E 184.9 79 3 0 6 13 8 50 18 0 0 67 68, Cooma, NSW, Australia E 180.4 53 7 0 13 35 8 0 32 0 0 68 75 GENSLER, San Francisco, Calif., U.S.A. A 165.8 25 95 0 0 0 0 0 0 0 0 69 64 CHINA COMMUNICATIONS CONSTRUCTION GRP. LTD., Beijing, China EC 153.4 9 2 0 12 3 0 6 78 0 0 70 67 TEBODIN CONSULTANTS & ENGINEERS, The Hague, The Netherlands E 149.4 54 8 12 5 8 1 51 8 1 0 71 65 CHINA PETROLEUM PIPELINE ENG G CORP., Langfang City, Hebei, China EC 149.2 52 0 0 0 0 0 100 0 0 0 72 82 BECA GROUP LTD., Auckland, New Zealand O 139.0 44 23 6 4 24 0 25 8 0 0 73 185 ANHUI FOREIGN ECONOMIC CONSTRUCTION CO. LTD., Hefei, Anhui, China EC 137.1 100 100 0 0 0 0 0 0 0 0 74 80 DESSAU INC., Laval, Quebec, Canada E 137.0 21 9 0 19 12 4 0 26 0 2 75 71 ASSOCIATED CONSULTING ENGINEERS, Amarousion, Greece AE 131.4 95 31 0 2 10 31 4 20 1 1 76 72 ADPI, Athis-Mons, France AE 131.0 98 3 0 0 0 0 0 97 0 0 77 83 CHINA NATIONAL MACHINERY INDUSTRY CORP., Beijing, China EC 125.6 40 4 1 56 9 2 8 21 0 1 78 79 LAHMEYER INTERNATIONAL GMBH, Bad Vilbel, Germany E 122.4 84 0 0 90 8 0 0 2 0 0 79 74 CHIYODA CORP., Yokohama, Japan EC 121.0 86 0 0 1 0 0 99 0 0 0 80 63 SKIDMORE OWINGS & MERRILL LLP, New York, N.Y., U.S.A. AE 119.4 48 91 0 0 0 0 0 9 0 0 81 97 ARTELIA (SOGREAH & COTEBA), Echirolles Cedex, France E 118.5 33 20 0 4 18 6 28 23 1 1 82 85 ORIENTAL CONSULTANTS (ACKG LTD.), Shibuyaku Tokyo, Japan E 117.2 31 8 0 4 5 6 0 77 0 0 83 134 KEPCO ENGINEERING & CONSTRUCTION, Yongin-si, Gyeunggi-do, S. Korea AE 107.1 23 0 0 100 0 0 0 0 0 0 84 81 KOHN PEDERSEN FOX ASSOCIATES PC, New York, N.Y., U.S.A. A 105.6 87 91 0 0 0 0 0 9 0 0 85 66 CDI ENGINEERING SOLUTIONS, Philadelphia, Pa., U.S.A. EC 105.1 22 27 0 2 1 0 32 38 0 0 86 91 TECNICA Y PROYECTOS SA (TYPSA), Madrid, Spain EA 103.5 45 17 0 2 16 14 0 49 0 1 87 14 HOCHTIEF AG, Essen, Germany EC 96.0 67 47 1 7 3 3 2 34 0 0 88 93 P&T ARCHITECTS & ENGINEERS LTD., Hongkong, China A 91.1 83 100 0 0 0 0 0 0 0 0 89 88 PM GROUP, Dublin, Ireland EA 91.0 57 25 4 0 9 1 60 1 0 0 90 87 KEO INTERNATIONAL CONSULTANTS WLL, Safat, Kuwait AEP 91.0 91 83 0 0 5 6 0 6 0 0 91 ** EPTISA, Madrid, Spain E 87.0 42 6 0 7 47 11 0 25 5 0 92 ** WOODS BAGOT, Melbourne, Victoria, Australia A 86.1 62 100 0 0 0 0 0 0 0 0 93 86, Cambridge, Mass., U.S.A. EC 84.0 13 8 0 0 44 39 0 5 4 0 94 ** MORRISON HERSHFIELD, Atlanta, Ga., U.S.A. E 82.4 82 30 0 0 2 6 0 35 2 21 95 84 CHINA PETROLEUM ENG G & CONSTRUCTION CORP., Beijing, China EC 80.6 27 0 0 0 0 0 100 0 0 0 96 77 CHINA POWER ENGINEERING CONSLTG. GROUP CO., Beijing, China EC 78.8 9 0 0 100 0 0 0 0 0 0 97 94 ENVIRON HOLDINGS INC., Arlington, Va., U.S.A. ENV 77.9 33 0 0 0 0 0 0 0 0 0 98 100 INSITUFORM TECHNOLOGIES INC., Chesterfield, Mo., U.S.A. EC 75.2 32 0 0 0 0 13 86 0 0 0 99 ** INGENIUM INTERNATIONAL INC., Detroit, Mich., U.S.A. AE 74.2 90 93 0 0 0 0 0 7 0 0 100 96 SEPCO ELECTRIC POWER CONSTR. CORP., Jinan City, Shandong, China EC 72.4 78 0 0 100 0 0 0 0 0 0 GENERAL BUILDING MANUFACTURING POWER WATER SUPPLY SEWER / WASTE INDUS. / PETROLEUM TRANSPORTATION HAZARDOUS WASTE TELECOM. enr.com July 25, 2011 ENR 43

THE TOP 200 INTERNATIONAL DESIGN FIRMS #17 AURECON, a merger of Australia s Connell Wagner and South Africa s Africon and Ninham Shand, now is based in Singapore. RANK 2011 2010 FIRM TYPE 2010 INT'L REVENUE IN $ MIL. % OF TOTAL REV. 101 98 OPUS INTERNATIONAL CONSULTANTS LTD., Wellington, New Zealand O 70.3 29 35 0 0 5 1 0 59 0 0 102 92 HYDROCHINA CORP., Beijing, China EC 69.4 5 0 0 0 100 0 0 0 0 0 103 90 HDR, Omaha, Neb., U.S.A. EA 69.2 5 68 0 7 2 2 0 21 0 0 104 177 SK ENGINEERING & CONSTRUCTION, Seoul, S. Korea EC 65.7 62 0 0 0 0 0 100 0 0 0 105 ** ATLAS GROUP, Ankara, Turkey EC 65.0 100 100 0 0 0 0 0 0 0 0 106 76 STANLEY CONSULTANTS INC., Muscatine, Iowa, U.S.A. E 64.0 31 11 0 41 4 17 0 27 0 0 107 ** ACCIONA INFRAESTRUCTURAS, Madrid, Spain EC 62.0 46 16 0 2 3 1 14 64 0 0 108 135 TECHINT GROUP, Milan, Italy EC 60.5 100 0 0 11 0 0 70 0 0 0 109 ** IDOM, Madrid, Spain EA 57.0 27 3 1 44 0 7 29 10 0 6 110 **, Nanterre, France E 57.0 38 0 0 0 32 32 0 18 0 0 111 143 LEND LEASE GROUP, Millers Point, NSW, Australia EC 56.9 29 100 0 0 0 0 0 0 0 0 112 89 CONESTOGA-ROVERS & ASSOCIATES, Niagara Falls, N.Y., U.S.A. E 55.0 22 5 0 5 5 15 5 0 64 0 113 131 SENER INGENIERIA Y SISTEMAS SA, Las Arenas, Vizcaya, Spain EC 53.4 55 2 13 13 0 0 17 55 0 0 114 110 LARSEN & TOUBRO LTD., Mumbai, India EC 52.0 12 1 39 2 0 0 52 6 0 0 115 125, Irvine, Calif., U.S.A. A 51.7 94 100 0 0 0 0 0 0 0 0 116 105 EMPRESARIOS AGRUPADOS, Madrid, Spain EA 51.5 49 0 0 86 0 0 0 0 3 4 117 116 NIPPON JOGESUIDO SEKKEI CO. LTD., Tokyo, Japan E 51.0 30 0 0 0 55 45 0 0 0 0 118 ** PUNJ LLOYD LTD., Gurgaon, Haryana, India EC 51.0 82 0 0 0 0 0 100 0 0 0 119 107 H.P. GAUFF INGENIEURE GMBH & CO. KG - JBG, Nuremberg, Germany 50.9 69 0 0 8 29 12 0 38 0 8 120 115 CALLISON, Seattle, Wash., U.S.A. A 50.5 55 100 0 0 0 0 0 0 0 0 121 140 RAFAEL VINOLY ARCHITECTS PC, New York, N.Y., U.S.A. AE 50.2 48 100 0 0 0 0 0 0 0 0 122 104 BURNS AND ROE GROUP INC., Oradell, N.J., U.S.A. EC 49.2 41 4 0 91 4 0 0 0 0 0 123 106 POPULOUS, Kansas City, Mo., U.S.A. A 47.0 47 100 0 0 0 0 0 0 0 0 124 136 BELT COLLINS, Honolulu, Hawaii, U.S.A. L 46.4 81 100 0 0 0 0 0 0 0 0 125 154 SINOHYDRO CORP., Beijing, China EC 45.7 87 33 2 32 11 0 0 22 0 0 126 103 TAHAL GROUP BV, Amsterdam, The Netherlands EC 44.9 100 0 0 0 74 10 5 1 0 0 127 118 ENERGOPROJEKT HOLDING PLC, Belgrade, Serbia EC 44.9 67 0 0 89 10 0 1 0 0 0 128 132 ECOLOGY & ENVIRONMENT INC., Lancaster, N.Y., U.S.A. ENV 44.8 31 0 2 28 5 5 34 1 1 0 129 113 CANNON DESIGN, Grand Island, N.Y., U.S.A. AE 43.9 23 100 0 0 0 0 0 0 0 0 130 108 ENGINEERING FOR THE PETROLEUM & PROCESS INDUSTRIES, Cairo, Egypt EC 43.8 23 0 0 0 0 0 100 0 0 0 131 120 SARGENT & LUNDY LLC, Chicago, Ill., U.S.A. EA 42.2 8 0 0 100 0 0 0 0 0 0 132 78 CHINA RAILWAY CONSTRUCTION CORP. LTD., Beijing, China EC 42.0 3 0 0 0 0 0 0 100 0 0 133 139, Paris, France E 42.0 13 18 26 8 9 0 0 39 0 0 134 124 DELCAN CORP., Markham, Ontario, Canada E 41.6 36 0 0 0 0 0 0 100 0 0 135 114 WILBUR SMITH ASSOCIATES INC., Columbia, S.C., U.S.A. E 41.1 23 0 0 0 0 2 0 98 0 0 136 121 CHINA HUANQIU CONTRACTING & ENGINEERING CORP., Beijing, China EC 40.6 12 0 0 0 0 0 100 0 0 0 137 119 PCG PROFABRIL CONSULPLANO GROUP, Lisbon, Portugal E 40.3 66 10 0 7 4 1 69 9 0 0 138 178 BONIFICA SPA, Rome, Italy E 38.0 79 0 0 0 11 0 0 89 0 0 139 ** VERSAR INC., Springfield, Va., U.S.A. EC 37.8 43 100 0 0 0 0 0 0 0 0 140 126 CHINA INT L WATER & ELECTRIC CORP. (CWE), Beijing, China EC 37.0 90 0 0 78 21 0 0 0 0 0 141 117 ITALCONSULT, Rome, Italy E 35.2 95 0 0 0 4 3 0 94 0 0 142 199 ITALFERR SPA, Rome, Italy E 35.0 14 0 0 0 0 0 0 100 0 0 143 ** STUDI INTERNATIONAL, Tunis Carthage, Tunis, Tunisia E 33.4 90 16 0 4 18 4 0 57 0 0 144 ** JBA CONSULTING ENGINEERS, Las Vegas, Nev., U.S.A. E 33.3 75 100 0 0 0 0 0 0 0 0 145 ** STRUCTORIS, London, U.K. AE 33.1 87 100 0 0 0 0 0 0 0 0 146 112, Courbevoie, France E 32.5 15 33 10 0 0 2 0 55 0 0 147 172 GEODATA SPA, Torino, Italy E 32.1 84 0 0 36 7 0 0 52 0 0 148 128 CHINA TIANCHEN ENGINEERING CORP., Tianjin, China E 31.4 24 0 0 27 30 0 43 0 0 0 149 165 TECHNITAL SPA, Milan, Italy E 31.0 38 0 0 0 10 6 3 65 0 0 150 123 NET ENGINEERING INTERNATIONAL SPA, Rubano, Italy E 31.0 46 3 13 23 0 0 0 60 1 0 GENERAL BUILDING MANUFACTURING POWER WATER SUPPLY SEWER / WASTE INDUS. / PETROLEUM TRANSPORTATION HAZARDOUS WASTE TELECOM. 44 ENR July 25, 2011 enr.com

#10 SNC-LAVALIN INTERNATIONAL has acquired numerous firms, including, on July 5, Canada s MDH Engineered Solutions. RANK 2011 2010 FIRM TYPE 2010 INT'L REVENUE IN $ MIL. % OF TOTAL REV. 151 137 CONSOLIDATED CONTRACTORS GROUP, Athens, Greece EC 30.0 100 33 0 0 0 33 33 0 0 0 152 153 THORNTON TOMASETTI INC., New York, N.Y., U.S.A. EA 29.3 31 99 0 0 0 0 0 1 0 0 153 ** ABB SPA - PROCESS AUTOMATION DIV., Sesto San Giovanni, Italy EC 29.1 100 0 0 9 0 0 91 0 0 0 154 102 CHINA GEZHOUBA GROUP CO. LTD., Wuhan, Hubei, China EC 28.2 79 11 1 25 3 38 0 22 0 0 155 200 STEELMAN PARTNERS, Las Vegas, Nev., U.S.A. A 28.0 80 100 0 0 0 0 0 0 0 0 156 151 EHAF CONSULTING ENGINEERS, Giza, Egypt AE 27.9 71 95 0 0 0 0 3 1 0 0 157 189 UNIVERSALPEGASUS INTERNATIONAL INC., Houston, Texas, U.S.A. E 27.7 8 0 0 0 0 0 100 0 0 0 158 ** MOUCHEL, Woking, Surrey, U.K. E 27.6 3 0 0 2 19 17 8 55 0 0 159 111 NBBJ, Seattle, Wash., U.S.A. A 27.6 14 100 0 0 0 0 0 0 0 0 160 166 PERKINS EASTMAN, New York, N.Y., U.S.A. A 27.5 25 100 0 0 0 0 0 0 0 0 161 155 BURNS & MCDONNELL, Kansas City, Mo., U.S.A. EAC 27.4 4 100 0 0 0 0 0 0 0 0 162 149 CES CONSULTING ENGINEERS SALZGITTER GMBH, Braunschweig, Germany E 26.8 99 11 0 4 36 46 0 3 0 0 163 ** GEOSYNTEC CONSULTANTS, Atlanta, Ga., U.S.A. E 26.6 16 0 0 8 0 0 28 0 64 0 164 181 KAJIMA CORP., Tokyo, Japan EC 25.8 8 36 32 0 0 1 14 1 0 1 165 ** SHENYANG YUANDA ALUMINUM INDUS. ENG G CO. LTD., Shenyang, China EC 25.0 97 100 0 0 0 0 0 0 0 0 166 158 SUMITOMO MITSUI CONSTRUCTION CO. LTD., Tokyo, Japan EC 25.0 89 8 88 0 0 0 4 0 0 0 167 167 KIEWIT CORP., Omaha, Neb., U.S.A. E 24.9 13 0 0 100 0 0 0 0 0 0 168 183 MOFFATT & NICHOL, Long Beach, Calif., U.S.A. E 24.7 21 0 0 0 4 0 0 96 0 0 169 144 WALDEMAR S. NELSON AND CO. INC., New Orleans, La., U.S.A. EA 24.1 40 0 0 1 0 1 82 0 0 0 170 133 ENGINEERING CONSULTANTS GROUP SA, Cairo, Egypt AE 23.9 32 55 0 5 8 5 20 7 0 0 171 141 PAGESOUTHERLANDPAGE, Houston, Texas, U.S.A. AE 23.9 29 100 0 0 0 0 0 0 0 0 172 196 NIHON SEKKEI INC., Tokyo, Japan AE 23.7 13 95 0 0 0 0 0 0 0 0 173 148 POSCO ENGINEERING & CONSTRUCTION, Incheon, S. Korea EC 22.6 43 49 0 0 0 0 51 0 0 0 174 161 ARABTECH JARDANEH, Amman, Jordan EA 22.4 69 46 0 0 22 4 0 13 0 0 175 198 D APPOLONIA SPA, Genoa, Italy E 21.9 46 2 0 37 0 0 10 25 7 9 176 162 KLINGSTUBBINS, Philadelphia, Pa., U.S.A. AEP 21.6 22 94 6 0 0 0 0 0 0 0 177 138 HKS INC., Dallas, Texas, U.S.A. AE 21.0 11 100 0 0 0 0 0 0 0 0 178 164 OTAK INC., Lake Oswego, Ore., U.S.A. EA 20.7 38 32 0 0 0 0 0 68 0 0 179 173 GHAFARI ASSOCIATES LLC, Dearborn, Mich., U.S.A. EA 20.2 23 0 50 0 0 0 0 50 0 0 180 194 SHELADIA ASSOCIATES INC., Rockville, Md., U.S.A. EA 19.7 78 2 0 1 17 0 0 80 0 0 181 180 WONG TUNG & PARTNERS LTD., Hong Kong, China A 19.4 68 100 0 0 0 0 0 0 0 0 182 159 GULF INTERSTATE ENGINEERING CO., Houston, Texas, U.S.A. EA 19.4 19 0 0 0 0 0 100 0 0 0 183 146 DAEWOO ENGINEERING CO., Seongnam City, S. Korea EC 19.3 18 0 0 44 1 0 47 4 0 0 184 190 PEG SA, Geneva, Switzerland E 19.0 100 0 0 0 0 0 100 0 0 0 185 168 MMM GROUP LTD., Thornhill, Ontario, Canada E 18.4 12 11 0 0 0 22 0 49 0 0 186 192 NIHON SUIDO CONSULTANTS CO. LTD., Tokyo, Japan E 18.2 10 0 0 0 78 22 0 0 0 0 187 ** POWER ENGINEERS INC., Hailey, Idaho, U.S.A. E 17.9 9 1 0 94 0 0 4 0 0 0 188 174 GITEC CONSULT GMBH, Dusseldorf, Germany E 17.2 100 7 0 0 22 15 0 18 0 0 189 ** USS CAL BUILDERS INC., Stanton, Calif., U.S.A. EC 17.0 33 100 0 0 0 0 0 0 0 0 190 130 YACHIYO ENGINEERING CO. LTD., Tokyo, Japan E 16.8 19 7 0 11 27 17 0 23 0 5 191 179 HANKINS AND ANDERSON INC., Glen Allen, Va., U.S.A. AE 16.7 52 99 0 0 0 0 0 0 0 1 192 ** INECO, Madrid, Spain E 16.5 5 0 0 0 0 0 0 100 0 0 193 186 KLING CONSULT GMBH & CO. INTERNATIONAL KG, Krumbach, Germany E 16.4 65 74 0 0 5 8 0 13 0 0 194 ** HEFEI CEMENT RESEARCH & DESIGN INSTITUTE, Hefei, China EC 16.3 26 0 0 0 0 0 100 0 0 0 195 147 SWANKE HAYDEN CONNELL ARCHITECTS, New York, N.Y., U.S.A. A 16.1 51 100 0 0 0 0 0 0 0 0 196 ** TEMELSU INTERNATIONAL ENGINEERING SERVICES INC., Ankara, Turkey E 16.1 48 0 0 0 10 11 0 34 0 0 197 176 BESIX SA, Brussels, Belgium EC 15.0 83 27 0 0 0 7 0 67 0 0 198 ** ENGLOBAL, Houston, Texas, U.S.A. EC 15.0 5 0 0 0 0 0 100 0 0 0 199 188 HEERIM ARCHITECTS & PLANNERS CO. LTD., Seoul, S. Korea AE 14.9 14 81 0 0 0 0 0 1 0 0 200 ** LANDRUM & BROWN INC., Cincinnati, Ohio, U.S.A. AP 14.7 43 0 0 0 0 0 0 100 0 0 GENERAL BUILDING MANUFACTURING POWER WATER SUPPLY SEWER / WASTE INDUS. / PETROLEUM TRANSPORTATION HAZARDOUS WASTE TELECOM. enr.com July 25, 2011 ENR 45

THE TOP 150 GLOBAL DESIGN FIRMS The Top 150 List RANK 2011 2010 FIRM TYPE 2010 REVENUE 1 1 AECOM TECHNOLOGY CORP., Los Angeles, Calif., U.S.A. EA 5,919.8 2,629.0 32 0 8 7 8 0 31 15 0 2 2 URS CORP., San Francisco, Calif., U.S.A. EAC 5,038.8 937.3 12 4 5 7 5 18 30 17 0 3 3 JACOBS, Pasadena, Calif., U.S.A. EAC 4,748.4 2,256.3 10 10 6 2 1 52 15 2 1 4 6 WORLEYPARSONS, North Sydney, NSW, Australia EC 3,650.5 2,850.6 0 0 12 1 0 76 2 0 0 5 5, Englewood, Colo., U.S.A. EA 3,602.7 891.3 5 4 9 14 15 22 17 14 0 6 7 AMEC PLC, London, U.K. E 3,399.0 2,456.0 5 0 15 2 2 57 4 3 0 7 4 FLUOR CORP., Irving, Texas, U.S.A. EC 3,127.5 2,057.6 1 0 11 0 0 82 0 5 0 8 8 FUGRO NV, Leidschendam, The Netherlands GE 3,001.0 2,826.0 11 0 3 1 0 75 5 0 1 9 9 SNC-LAVALIN INTERNATIONAL INC., Montreal, Quebec, Canada EC 2,848.5 1,670.9 19 0 20 6 0 41 12 2 0 10 10 ARCADIS NV, Amsterdam, The Netherlands E 2,653.0 2,122.0 14 2 2 16 2 7 19 37 0 11 13 TETRA TECH INC., Pasadena, Calif., U.S.A. E 2,210.0 279.0 11 3 14 32 8 4 3 24 0 12 12 BECHTEL, San Francisco, Calif., U.S.A. EC 2,170.0 1,220.0 1 0 23 0 0 53 6 13 2 13 11 ATKINS, Epsom, Surrey, U.K. EA 2,143.8 894.0 19 2 5 4 2 12 53 1 1 14 14, Houston, Texas, U.S.A. EC 2,010.3 1,737.9 0 0 7 3 0 79 9 0 0 15 17 DAR AL-HANDASAH CONSULTANTS (SHAIR & PARTNERS), Cairo, Egypt EA 1,781.2 1,776.6 55 0 1 3 3 11 28 0 0 16 72 BALFOUR BEATTY, London, U.K. EC 1,743.3 1,461.8 17 0 12 5 1 0 64 0 0 17 22 CHINA COMMUNICATIONS CONSTRUCTION GROUP LTD., Beijing, China EC 1,667.8 153.4 0 0 1 0 0 1 98 0 0 18 16 MOTT MACDONALD GROUP LTD., Croydon, Surrey, U.K. E 1,619.2 1,116.3 18 0 9 8 8 17 37 1 2 19 21 HYDROCHINA CORP., Beijing, China EC 1,529.4 69.4 0 0 0 100 0 0 0 0 0 20 18 HDR, Omaha, Neb., U.S.A. EA 1,500.3 69.2 23 0 12 11 13 1 38 2 0 21 24 STANTEC INC., Edmonton, Alberta, Canada EALP 1,432.9 606.3 23 0 9 11 10 10 19 12 0 22 19 ARUP GROUP LTD., London, U.K. E 1,365.0 959.0 40 5 1 2 1 3 40 3 2 23 25 TECNICAS REUNIDAS, Madrid, Spain EC 1,351.0 1,292.0 0 0 7 2 0 91 0 0 0 24 33 CHINA RAILWAY CONSTRUCTION CORP. LTD., Beijing, China EC 1,285.0 42.0 8 6 0 8 0 0 70 0 4 25 26 HATCH GROUP, Mississauga, Ontario, Canada E 1,251.4 750.0 0 0 10 3 3 60 18 0 0 26 15 THE SHAW GROUP INC., Baton Rouge, La., U.S.A. EC 1,210.1 532.7 2 0 36 1 1 37 3 21 0 27 30 GRONTMIJ NV, De Bilt, The Netherlands E 1,206.7 834.9 38 0 0 23 1 0 21 0 9 28 23 PARSONS, Pasadena, Calif., U.S.A. EC 1,167.8 246.0 13 0 2 5 6 4 40 24 4 29 29 LOUIS BERGER GROUP, Morristown, N.J., U.S.A. EAP 1,153.0 691.6 5 0 5 10 12 0 68 0 0 30 44 CHINA RAILWAY GROUP LTD., Beijing, China EC 1,136.2 247.2 9 0 0 0 0 0 81 0 0 31 27 BLACK & VEATCH, Overland Park, Kan., U.S.A. EC 1,104.8 322.1 3 0 51 15 16 2 0 1 11 32 28 WSP GROUP PLC, London, U.K. E 1,093.1 742.6 44 0 3 0 2 12 30 1 1 33 41 GOLDER ASSOCIATES CORP., Mississauga, Ontario, Canada E 1,092.4 715.1 4 8 8 3 11 17 9 1 0 34 59 CHINA METALLURGICAL GROUP CORP., Beijing, China EA 1,080.7 13.4 13 0 7 0 1 64 2 1 0 35 32 RAMBOLL GROUP A/S, Copenhagen, Denmark E 1,074.5 701.0 33 0 8 4 3 12 28 1 4 36 48 EGIS, Saint Quentin en Yvelines, France EC 1,071.2 492.8 15 0 2 4 1 3 71 0 0 37 43 HNTB COS., Kansas City, Mo., U.S.A. EA 1,000.0 10.3 8 0 0 5 3 0 85 0 0 38 35 CHINA CHENGDA ENGINEERING CO. LTD., Chengdu, Sichuan, China EC 994.6 385.5 0 0 35 0 0 65 0 0 0 39 45 SINCLAIR KNIGHT MERZ, St. Leonards, NSW, Australia E 967.4 261.6 8 0 10 7 3 9 17 1 0 40 ** MOUCHEL, Woking, Surrey, U.K. E 956.1 27.6 0 0 1 5 5 1 88 0 0 41 52 GHD PTY. LTD., Sydney, NSW, Australia E 937.0 204.0 21 1 2 22 11 3 26 8 0 42 50 AURECON, Singapore E 934.6 929.7 17 2 6 7 3 26 26 0 4 43 39 SINOPEC ENGINEERING INC., Beijing, China EC 930.1 315.6 0 0 0 0 0 100 0 0 0 44 36 MWH GLOBAL, Broomfield, Colo., U.S.A. EC 923.0 470.0 0 0 9 48 40 0 3 0 0 45 38 TECHNIP, Paris, France EC 922.0 910.0 0 0 0 0 0 100 0 0 0 46 37 POYRY, Vantaa, Finland E 904.0 711.0 8 0 26 4 8 33 21 0 0 47 42 CHINA POWER ENGINEERING CONSLTG. GROUP CO., Beijing, China EC 889.7 78.8 0 0 100 0 0 0 0 0 0 48 **, Stockholm, Sweden E 803.7 350.3 41 0 14 11 6 9 16 0 0 49 51, Kongens Lyngby, Denmark E 802.4 534.2 21 0 0 4 15 0 45 3 0 50 55 AF AB, Stockholm, Sweden E 799.3 336.4 17 6 39 0 0 12 11 0 15 TOTAL $ MIL. INT'L $ MIL. GENERAL BUILDING MANUFACTURING POWER WATER SUPPLY SEWER / WASTE INDUS. / PETROLEUM TRANSPORTATION HAZARDOUS WASTE TELECOM. 46 ENR July 25, 2011 enr.com

#74 MACTEC INC. is the largest firm on the global list with no international revenue. MACTEC was acquired in May by AMEC, ranked at No. 6. RANK 2011 2010 FIRM TYPE 2010 REVENUE 51 31 SAIPEM, San Donato Milanese (Milan),Italy EC 782.1 206.9 0 0 2 0 14 67 17 0 0 52 46 HALCROW GROUP LTD., London, U.K. E 731.9 391.2 14 0 2 11 9 2 61 1 0 53 47 JGC CORP., Yokohama, Japan EC 719.0 596.0 4 0 1 0 1 91 0 2 0 54 56 BURNS & MCDONNELL, Kansas City, Mo., U.S.A. EAC 684.5 27.4 7 3 52 3 3 16 10 6 0 55 40 MUSTANG ENGINEERING, Houston, Texas, U.S.A. EC 684.3 202.7 0 0 0 0 0 100 0 0 0 56 60 GENSLER, San Francisco, Calif., U.S.A. A 656.9 165.8 91 0 0 0 0 0 0 0 0 57 58 DESSAU INC., Laval, Quebec, Canada E 652.0 137.0 40 0 14 5 5 0 16 0 4 58 53, Cambridge, Mass., U.S.A. EC 632.0 84.0 5 2 2 26 42 2 5 17 0 59 54 DHV GROUP, Amersfoort, The Netherlands E 625.2 318.6 12 2 2 12 8 7 48 0 0 60 ** CARDNO LTD., Brisbane, Queensland, Australia O 617.0 397.0 15 0 4 6 4 24 24 8 1 61 49, The Woodlands, Texas, U.S.A. EC 601.0 554.9 0 0 0 0 0 100 0 0 0 62 ** GENIVAR INC., Montreal, Quebec, Canada E 572.6 7.1 32 0 3 9 9 11 21 0 4 63 62 NIPPON KOEI GROUP, Tokyo, Japan E 568.0 206.0 1 0 5 4 8 0 21 3 3 64 76 EXP, Brampton, Ontario, Canada EA 540.0 228.1 38 3 3 10 7 12 18 3 3 65 66 COFFEY INTERNATIONAL, Sydney, NSW, Australia GE 520.1 207.9 19 0 3 7 4 7 16 9 0 66 63 SARGENT & LUNDY LLC, Chicago, Ill., U.S.A. EA 504.0 42.2 0 0 100 0 0 0 0 0 0 67 71 CHINA CONSTRUCTION ENG G DESIGN GROUP CORP. LTD., Beijing, China AE 493.5 10.5 72 0 2 2 5 0 8 0 0 68 70 CDI ENGINEERING SOLUTIONS, Philadelphia, Pa., U.S.A. EC 473.8 105.1 10 10 17 1 0 43 13 0 3 69 88 KEPCO ENGINEERING & CONSTRUCTION, Yongin-si, Gyeunggi-do, S. Korea AE 469.0 107.1 0 0 99 0 0 0 0 1 0 70 68, St. Louis, Mo., U.S.A. AE 462.3 196.3 85 0 0 0 0 0 15 0 0 71 ** HYDER CONSULTING, London, U.K. E 452.2 322.1 27 0 1 4 9 0 53 0 0 72 77 MICHAEL BAKER CORP., Moon Township, Pa., U.S.A. EA 444.0 7.7 11 0 0 15 2 2 60 8 1 73 127 LARSEN & TOUBRO LTD., Mumbai, India EC 427.0 52.0 2 10 33 0 0 47 8 0 0 74 73 MACTEC INC., Alpharetta, Ga., U.S.A. EAC 407.7 0.0 20 15 11 2 1 5 18 25 2 75 80 SHANGHAI XIAN DAI ARCHITECTURAL DESIGN CO. LTD., Shanghai, China AE 377.8 2.1 100 0 0 0 0 0 0 0 0 76 84 ORIENTAL CONSULTANTS (ACKG LTD.), Tokyo, Japan E 374.3 117.2 3 0 1 5 4 0 70 0 0 77 125 CTCI CORP., Taipei, Taiwan EC 361.5 259.6 2 3 7 0 0 71 15 1 0 78 148 ARTELIA (SOGREAH & COTEBA), Echirolles Cedex, France E 357.6 118.5 39 0 4 15 8 12 20 1 1 79 ** ITALIAN-THAI DEVELOPMENT PCL, Bangkok, Thailand EC 356.4 0.0 0 0 0 0 0 0 100 0 0 80 102 HYUNDAI ENGINEERING CO. LTD., Seoul, S. Korea EC 355.5 243.0 2 0 29 6 10 51 2 1 0 81 74 INECO, Madrid, Spain E 353.0 16.5 0 0 0 0 0 0 100 0 0 82 109 MAIRE TECNIMONT SPA, Rome, Italy EC 352.4 338.9 0 0 32 0 0 68 0 0 0 83 81 UNIVERSALPEGASUS INTERNATIONAL INC., Houston, Texas, U.S.A. E 350.8 27.7 0 0 3 0 0 97 0 0 0 84 91 STV GROUP INC., New York, N.Y., U.S.A. EA 350.3 0.8 17 0 0 0 0 0 83 0 0 85 79, Paris, France E 348.7 283.2 0 0 0 0 0 0 100 0 0 86 ** TRACTEBEL ENGINEERING GDF-SUEZ, Brussels, Belgium E 346.0 195.0 12 0 81 4 0 0 3 0 0 87 90, Cooma, NSW, Australia E 341.9 180.4 4 0 7 30 7 0 45 0 0 88 120 KAJIMA CORP., Tokyo, Japan EC 340.5 25.8 44 13 0 0 0 1 0 0 0 89 106 CHINA HUANQIU CONTRACTING & ENGINEERING CORP., Beijing, China EC 329.6 40.6 9 0 0 0 4 87 0 0 0 90 78 TRC COS. INC., Lowell, Mass., U.S.A. E 329.1 1.3 5 0 35 1 0 2 20 36 0 91 86 TERRACON CONSULTANTS INC., Olathe, Kan., U.S.A. E 329.0 0.0 48 2 6 3 4 4 14 16 2 92 82 KIMLEY-HORN AND ASSOCIATES INC., Raleigh, N.C., U.S.A. E 320.9 1.5 31 0 0 10 0 0 60 0 0 93 83 ENGLOBAL, Houston, Texas, U.S.A. EC 320.5 15.0 2 0 3 0 0 95 0 0 0 94 110 SCIENCE APPLICATIONS INTERNATIONAL CORP., McLean, Va., U.S.A. EC 319.9 3.2 20 1 37 6 7 5 3 0 1 95 111 BECA GROUP LTD., Auckland, New Zealand O 318.9 139.0 20 5 6 17 0 15 27 0 0 96 99, Paris, France E 315.3 42.0 14 11 6 5 2 0 60 0 2 97 95 CHINA NATIONAL MACHINERY INDUSTRY CORP., Beijing, China EC 311.8 125.6 47 8 26 4 2 4 9 0 0 98 87 THE KLEINFELDER GROUP INC., San Diego, Calif., U.S.A. E 305.6 0.1 16 1 2 15 11 3 14 36 1 99 114 AEDAS, New York, N.Y., U.S.A. A 304.4 261.7 90 0 0 0 0 0 10 0 0 100 105 CHINA PETROLEUM ENG G & CONSTRUCTION CORP., Beijing, China EC 300.7 80.6 0 0 0 0 0 100 0 0 0 TOTAL $ MIL. INT'L $ MIL. GENERAL BUILDING MANUFACTURING POWER WATER SUPPLY SEWER / WASTE INDUS. / PETROLEUM TRANSPORTATION HAZARDOUS WASTE TELECOM. enr.com July 25, 2011 ENR 47

THE TOP 150 GLOBAL DESIGN FIRMS #01 AECOM TECHNOLOGY CORP. is at the top of the Top 150 Global Design Firms list. Five of the list s top seven designers are based in the U.S. RANK 2011 2010 FIRM TYPE 2010 REVENUE 101 94 GANNETT FLEMING, Harrisburg, Pa., U.S.A. EA 296.7 5.3 4 0 9 16 9 0 55 5 0 102 75 S&B ENGINEERS AND CONSTRUCTORS LTD., Houston, Texas, U.S.A. EC 296.1 0.6 0 0 0 2 0 94 2 0 0 103 89 DEWBERRY, Fairfax, Va., U.S.A. EA 295.2 3.0 39 0 1 17 7 0 33 1 0 104 97 CHINA PETROLEUM PIPELINE ENG G CORP., Langfang City, Hebei, China EC 284.9 149.2 0 0 0 0 0 100 0 0 0 105 93 TEBODIN CONSULTANTS & ENGINEERS, The Hague, The Netherlands E 278.1 149.4 8 10 6 6 1 56 6 1 1 106 ** DOHWA ENGINEERING CO. LTD., Seoul, S. Korea EC 277.0 3.1 0 0 5 29 22 0 19 0 0 107 103 KHATIB & ALAMI, Beirut, Lebanon AE 272.9 258.6 47 0 3 11 8 10 18 0 0 108 108 BROWN AND CALDWELL, Walnut Creek, Calif., U.S.A. E 272.0 0.0 0 0 0 20 51 0 0 29 0 109 100 FICHTNER GMBH & CO. KG, Stuttgart, Germany E 268.0 188.0 1 1 74 6 10 4 2 0 1 110 57 MCDERMOTT INTERNATIONAL INC., Houston, Texas, U.S.A. EC 255.3 254.9 0 0 0 0 0 100 0 0 0 111 ** ITALFERR SPA, Rome, Italy E 255.0 35.0 0 0 0 0 0 0 100 0 0 112 113 WL MEINHARDT GROUP PTY. LTD., Melbourne, Victoria, Australia EA 251.2 204.1 53 4 2 5 10 2 21 0 3 113 92 SKIDMORE OWINGS & MERRILL LLP, New York, N.Y., U.S.A. AE 251.0 119.4 91 0 0 0 0 0 9 0 0 114 107 BUREAU VERITAS, Fort Lauderdale, Fla., U.S.A. E 249.7 0.0 20 19 2 1 3 7 16 19 0 115 98 CONESTOGA-ROVERS & ASSOCIATES, Niagara Falls, N.Y., U.S.A. E 245.0 55.0 2 0 3 2 4 7 0 82 0 116 117 AUSENCO, South Brisbane, Queensland, Australia E 243.0 202.7 2 1 4 3 6 48 12 0 0 117 121 OPUS INTERNATIONAL CONSULTANTS LTD., Wellington, New Zealand O 238.8 70.3 19 0 5 3 5 0 65 0 2 118 131 SAMOO ARCHITECTS & ENGINEERS, Seoul, S. Korea AE 235.8 9.5 81 19 0 0 0 0 0 0 0 119 118 ENVIRON HOLDINGS INC., Arlington, Va., U.S.A. ENV 235.3 77.9 0 0 0 1 4 0 0 0 0 120 112 ILF CONSULTING ENGINEERS, Rum/Innsbruck, Austria E 233.1 184.9 4 0 6 12 6 48 22 0 0 121 144 INSITUFORM TECHNOLOGIES INC., Chesterfield, Mo., U.S.A. EC 232.4 75.2 0 0 0 0 21 79 0 0 0 122 115 TECNICA Y PROYECTOS SA (TYPSA), Madrid, Spain EA 231.5 103.5 21 0 4 14 13 0 46 0 3 123 116, Courbevoie, France E 212.2 32.5 33 10 0 0 2 0 55 0 0 124 ** IDOM, Madrid, Spain EA 211.3 57.0 18 2 22 1 6 16 27 0 8 125 ** EPTISA, Madrid, Spain E 207.0 87.0 12 5 12 26 9 0 34 3 0 126 123 TRANSYSTEMS CORP., Kansas City, Mo., U.S.A. EA 205.2 0.3 0 0 0 0 0 0 100 0 0 127 101 STANLEY CONSULTANTS INC., Muscatine, Iowa, U.S.A. E 204.9 64.0 6 0 42 7 10 0 35 0 0 128 ** LEND LEASE GROUP, Millers Point, NSW, Australia EC 198.9 56.9 91 0 0 3 0 4 1 0 1 129 141 KIEWIT CORP., Omaha, Neb., U.S.A. E 198.0 24.9 0 0 100 0 0 0 0 0 0 130 128 POWER ENGINEERS INC., Hailey, Idaho, U.S.A. E 195.5 17.9 0 0 90 0 0 6 0 0 4 131 124 NBBJ, Seattle, Wash., U.S.A. A 193.8 27.6 100 0 0 0 0 0 0 0 0 132 136 CANNON DESIGN, Grand Island, N.Y., U.S.A. AE 192.7 43.9 100 0 0 0 0 0 0 0 0 133 122 SAMAN CORP., Gwacheon, Gyeonggi, S. Korea E 191.7 13.7 25 0 5 28 16 0 27 0 0 134 104 HKS INC., Dallas, Texas, U.S.A. AE 190.5 21.0 99 0 0 0 0 0 1 0 0 135 126 PROFESSIONAL SERVICE INDUS. (PSI), Oakbrook Terrace, Ill., U.S.A. E 188.4 0.0 59 5 2 2 1 4 19 8 0 136 96 ZACHRY HOLDINGS, San Antonio, Texas, U.S.A. EC 186.9 0.0 0 0 94 0 0 4 1 0 0 137 ** ENGINEERING FOR THE PETROLEUM & PROCESS INDUS., Cairo, Egypt EC 186.7 43.8 0 0 0 0 0 100 0 0 0 138 142 ENERCON SERVICES INC., Tulsa, Okla., U.S.A. E 186.4 1.8 0 1 87 1 1 3 2 6 1 139 ** CHINA RAILROAD FIRST PROSPECT & DESIGN INST. CO., Xi an, Shaanxi, China E 183.6 4.9 0 0 0 0 0 0 100 0 0 140 143 NIHON SUIDO CONSULTANTS CO. LTD., Tokyo, Japan E 182.4 18.2 0 0 0 32 45 0 0 0 0 141 129 ATC ASSOCIATES INC., Lafayette, La., U.S.A. E 180.5 0.5 15 0 0 2 2 34 8 38 1 142 140 SMITHGROUP INC., Detroit, Mich., U.S.A. AE 179.7 4.1 100 0 0 0 0 0 0 0 0 143 130 WILBUR SMITH ASSOCIATES INC., Columbia, S.C., U.S.A. E 178.0 41.1 0 0 0 0 2 0 97 0 0 144 ** NIHON SEKKEI INC., Tokyo, Japan AE 177.2 23.7 79 6 0 0 0 0 1 0 0 145 135 WESTON SOLUTIONS INC., West Chester, Pa., U.S.A. E 174.6 2.0 1 0 0 6 3 0 0 90 0 146 147 GREENMAN-PEDERSEN INC., Babylon, N.Y., U.S.A. E 171.7 0.4 9 0 10 1 1 4 67 0 1 147 150 NIPPON JOGESUIDO SEKKEI CO. LTD., Tokyo, Japan E 170.0 51.0 0 0 0 39 61 0 0 0 0 148 ** GEOSYNTEC CONSULTANTS, Atlanta, Ga., U.S.A. E 162.7 26.6 0 0 5 1 24 11 1 58 0 149 138 HAZEN AND SAWYER PC, New York, N.Y., U.S.A. E 162.5 2.5 0 0 0 30 70 0 0 0 0 150 146 YOOSHIN ENGINEERING CORP., Seoul, S. Korea E 161.7 4.7 0 0 3 16 3 0 57 0 0 TOTAL $ MIL. INT'L $ MIL. GENERAL BUILDING MANUFACTURING POWER WATER SUPPLY SEWER / WASTE INDUS. / PETROLEUM TRANSPORTATION HAZARDOUS WASTE TELECOM. 48 ENR July 25, 2011 enr.com

THE TOP 200 INTERNATIONAL DESIGN FIRMS Where to find the Top 200 FIRM RANK FIRM RANK FIRM RANK FIRM RANK A E K S ABB SpA - Process Automation Div. 153 Acciona Infraestructuras 107 3 Aedas 47 ADPI 76 40 AMEC plc 4 Anhui Foreign Economic Construction (Group) Co. 73 Arabtech Jardaneh 174 ARCADIS NV 6 81 15 Associated Consulting Engineers 75 19 Atlas Group 105 Aurecon 17 Ausenco 61 B Balfour Beatty 11 Beca Group 72 13 Belt Collins 124 27 BESIX SA 197 41 Bonifica SpA 138 Burns & McDonnell 161 Burns and Roe Group Inc. 122 C Callison 120 Cannon Design 129 Cardno 35 30 CDI Engineering Solutions 85 93 CES Consulting Engineers Salzgitter GmbH 162 20 China Chengda Engineering Co. 37 Construction Grp. 69 China Gezhouba Group Co. 154 China HuanQiu Contracting & Engineering Corp. 136 China Int l Water & Electric Corp. (CWE) 140 77 China Petroleum Eng g & Construction Corp. 95 China Petroleum Pipeline Eng g Corp. 71 China Power Engineering Consltg. Group Co. 96 China Railway Construction Corp. 132 China Railway Group 52 China Tianchen Engineering Corp. 148 Chiyoda Corp. 79 Coffey International 56 Conestoga-Rovers & Assoc. 112 Consolidated Contractors Group 151 31 CTCI Corp. 49 D Daewoo Engineering Co. 183 D Appolonia SpA 175 8 Delcan Corp. 134 Dessau Inc. 74 43 Ecology & Environment Inc. 128 Egis 33 EHAF Consulting Engineers 156 Empresarios Agrupados 116 Energoprojekt Holding plc 127 Engineering Consultants Group SA 170 ENGlobal 198 ENPPI Engineering for the Petroleum & Process Industries 130 97 Eptisa 91 exp 55 F 65 7 2 G 119 68 Geodata SpA 147 Geosyntec Consultants 163 Ghafari Associates LLC 179 GHD Pty 60 GITEC Consult GmbH 188 24 21 Gulf Interstate Engineering Co. 182 H Halcrow Group 36 191 22 HDR 103 Heerim Architects & Planners Co. 199 Hefei Cement Research & Design Institute 194 177 HOCHTIEF AG 87 63 Hyder Consulting 42 Hydrochina Corp. 102 Hyundai Engineering Co., 54 I IDOM 109 66 INECO 192 Ingenium International Inc. 99 146 Insituform Technologies Inc. 98 Italconsult 141 Italferr SpA 142 J 5 JBA Consulting Engineers 144 JGC Corp. 29 Kajima Corp. 164 9 KEO International Consultants WLL 90 KEPCO Engineering & Construction Co. 83 Khatib & Alami 50 Kiewit Corp. 167 Kling Consult GmbH & Co International KG 193 KlingStubbins 176 Kohn Pedersen Fox Associates PC 84 L 78 Landrum & Brown Inc. 200 Larsen & Toubro 114 Lend Lease Group 111 M 39 McDermott International Inc. 51 WL Meinhardt Group Pty 59 MMM Group 185 168 Morrison Hershfield 94 14 Mouchel 158 Mustang Engineering 62 34 N NBBJ 159 Waldemar S. Nelson And Co. Inc. 169 Net Engineering International SpA 150 Nihon Sekkei Inc. 172 Nihon Suido Consultants Co. 186 Nippon Jogesuido Sekkei Co. 117 58 O Opus International Consultants 101 ) 82 Otak Inc. 178 PQ P&T Architects & Engineers 88 PageSoutherlandPage 171 Parsons 53 PCG Profabril Consulplano Group 137 PEG SA 184 Perkins Eastman 160 PM Group 89 Populous 123 POSCO Engineering & Construction 173 187 25 Punj Lloyd 118 R 26 110 Saipem 57 131 Sener Ingenieria y Sistemas SA 113 133 SEPCO Electric Power Construction Corp. 100 32 Sheladia Associates Inc. 180 Shenyang Yuanda Aluminum Indus. Eng g Co. 165 48 Sinohydro Corp. 125 Sinopec Engineering Inc. 44 SK Engineering & Construction 104 Skidmore Owings & Merrill LLP 80 67 10 Stanley Consultants Inc. 106 28 Steelman Partners 155 Structoris 145 Studi International 143 Sumitomo Mitsui Construction Co. 166 Swanke Hayden Connell Architects 195 38 45 T TAHAL Group BV 126 Tebodin Consultants & Engineers 70 108 TECHNIP 18 Technital SpA 149 86 Tecnicas Reunidas 12 Temelsu International Engineering Services Inc. 196 46 Thornton Tomasetti Inc. 152 64 U UniversalPegasus International Inc 157 16 USS Cal Builders Inc. 189 V Versar Inc. 139 Rafael Vinoly Architects PC 121 WX 115 Wilbur Smith Associates Inc. 135 Wong Tung & Partners 181 Woods Bagot 92 1 23 YZ Yachiyo Engineering Co. 190 50 ENR July 25, 2011 enr.com

THE TOP 150 GLOBAL DESIGN FIRMS Where to find the Top 150 FIRM RANK FIRM RANK FIRM RANK FIRM RANK A E K S 1 Aedas 99 AF AB 50 AMEC plc 6 ARCADIS NV 10 78 22 ATC Associates Inc. 141 13 Aurecon 42 Ausenco 116 B Michael Baker Corp. 72 Balfour Beatty 16 Beca Group 95 12 29 31 Brown and Caldwell 108 Bureau Veritas 114 Burns & McDonnell 54 C Cannon Design 132 Cardno 60 61 CDI Engineering Solutions 68 58 5 China Chengda Engineering Co. 38 Construction Group 17 China Construction Eng g Design Group Corp. 67 China HuanQiu Contracting & Engineering Corp. 89 China Metallurgical Group Corp. 34 97 China Petroleum Eng g & Construction Corp. 100 China Petroleum Pipeline Eng g Corp. 104 China Power Engineering Consulting Group Co. 47 China Railroad First Prospect & Design Institute Group Co. 139 China Railway Construction Corp. 24 China Railway Group 30 Coffey International 65 Conestoga-Rovers & Assoc. 115 49 CTCI Corp. 77 D 15 Dessau Inc. 57 Dewberry 103 59 Dohwa Engineering Co. 106 Egis 36 Enercon Services Inc. 138 ENGlobal 93 ENPPI Engineering for the Petroleum & Process Industries 137 119 Eptisa 125 exp 64 F 109 7 8 G Gannett Fleming 101 Genivar Inc. 62 56 Geosyntec Consultants 148 GHD Pty 41 33 Greenman-Pedersen Inc. 146 27 H Halcrow Group 52 25 Hazen and Sawyer PC 149 HDR 20 134 HNTB Cos. 37 70 Hyder Consulting 71 Hydrochina Corp. 19 Hyundai Engineering Co., 80 I IDOM 124 120 INECO 81 123 Insituform Technologies Inc. 121 Italferr SpA 111 Italian-Thai Development PCL 79 J 3 JGC Corp. 53 Kajima Corp. 88 14 KEPCO Engineering & Construction Co. 69 Khatib & Alami 107 Kiewit Corp. 129 Kimley-Horn and Associates Inc. 92 The Kleinfelder Group Inc. 98 L Larsen & Toubro 73 Lend Lease Group 128 M MACTEC Inc. 74 82 McDermott International Inc. 110 WL Meinhardt Group Pty 112 18 Mouchel 40 Mustang Engineering 55 44 N NBBJ 131 Nihon Sekkei Inc. 144 Nihon Suido Consultants Co. 140 Nippon Jogesuido Sekkei Co. 147 63 O Opus International Consultants 117 ) 76 PQ Parsons 28 130 46 Professional Service Industries (PSI) 135 R 35 S&B Engineers and Constructors and Aff. 102 Saipem 51 Saman Corp. 133 Samoo Architects & Engineers 118 66 Science Applications Int l Corp. 94 96 Shanghai Xian Dai Architectural Design (Group) Co. 75 26 39 Sinopec Engineering Inc. 43 Skidmore Owings & Merrill LLP 113 87 SmithGroup Inc. 142 9 Stanley Consultants Inc. 127 21 STV Group Inc. 84 48 85 T Tebodin Consultants & Engineers 105 TECHNIP 45 122 Tecnicas Reunidas 23 Terracon Consultants Inc. 91 11 86 TranSystems Corp. 126 TRC Cos. Inc. 90 UV UniversalPegasus International Inc. 83 2 WX Weston Solutions Inc. 145 Wilbur Smith Associates Inc. 143 4 32 Y Yooshin Engineering Corp. 150 X Zachry Holdings 136 52 ENR July 25, 2011 enr.com

A. NORTH AMERICA CANADA Acciona Infraestructuras Aedas AMEC plc ARCADIS NV Ausenco Burns and Roe Group Inc. Callison Cannon Design Cardno CDI Engineering Solutions Chiyoda Corp. Coffey International Conestoga-Rovers & Assoc. Ecology & Environment Inc. ENGlobal Geosyntec Consultants Ghafari Associates LLC GHD Pty Halcrow Group HDR Ingenium International Inc. Insituform Technologies Inc. Kiewit Corp. Kohn Pedersen Fox Associates PC Landrum & Brown Inc. McDermott International Inc. Morrison Hershfield 2011 ENR TOP INTERNATIONAL DESIGN FIRMS Mustang Engineering Waldemar S. Nelson And Co. Inc. Opus International Consultants Parsons Perkins Eastman Populous Punj Lloyd Saipem Sinopec Engineering Inc. Skidmore Owings & Merrill LLP Stanley Consultants Inc. Steelman Partners TECHNIP Thornton Tomasetti Inc. UniversalPegasus International Inc. Wilbur Smith Associates Inc. Woods Bagot UNITED STATES ARCADIS NV Ausenco Cardno China Chengda Engineering Co. Chiyoda Corp. Coffey International CTCI Corp. Delcan Corp. Empresarios Agrupados Eptisa exp Geodata SpA GHD Pty Halcrow Group IDOM Kajima Corp. KEPCO Engineering & Construction Co. MMM Group WL Meinhardt Group Pty Nihon Sekkei Inc. Nippon Jogesuido Sekkei Co. Opus International Consultants PM Group Punj Lloyd TECHNIP Woods Bagot B. LATIN AMERICA ARGENTINA Ausenco Ecology & Environment Inc. Empresarios Agrupados 1

2 Geodata SpA Halcrow Group INECO Sener Ingenieria y Sistemas SA TAHAL Group BV Tecnicas Reunidas Rafael Vinoly Architects PC BOLIVIA Ausenco CES Consulting Engineers Salzgitter GmbH Ecology & Environment Inc. Eptisa GITEC Consult GmbH IDOM Technital SpA BRAZIL Acciona Infraestructuras Aedas ADPI ARCADIS NV Ausenco Callison Cannon Design China Chengda Engineering Co. Chiyoda Corp. Coffey International Ecology & Environment Inc. Empresarios Agrupados Eptisa Geodata SpA GITEC Consult GmbH Halcrow Group INECO Kohn Pedersen Fox Associates PC McDermott International Inc. Mustang Engineering NBBJ Waldemar S. Nelson And Co. Inc. Nihon Suido Consultants Co. Nippon Jogesuido Sekkei Co. ) PCG Profabril Consulplano Group Perkins Eastman Populous Sener Ingenieria y Sistemas SA SEPCO Electric Power Construction Corp. TECHNIP Tecnicas Reunidas Woods Bagot CHILE Acciona Infraestructuras ADPI ARCADIS NV Ausenco Beca Group Burns and Roe Group Inc. Daewoo Engineering Co. Dessau Inc. Ecology & Environment Inc. Empresarios Agrupados Geodata SpA GHD Pty Halcrow Group HDR

3 HOCHTIEF AG Hyundai Engineering Co., IDOM INECO KEPCO Engineering & Construction Co. Sener Ingenieria y Sistemas SA Tecnicas Reunidas Thornton Tomasetti Inc. COLOMBIA ADPI Ausenco Burns and Roe Group Inc. Coffey International Dessau Inc. Eptisa Geodata SpA Halcrow Group HDR IDOM INECO Kohn Pedersen Fox Associates PC Landrum & Brown Inc. Mustang Engineering Waldemar S. Nelson And Co. Inc. PEG SA Perkins Eastman TECHNIP Thornton Tomasetti Inc. Yachiyo Engineering Co. COSTA RICA Dessau Inc. ENGlobal Eptisa GITEC Consult GmbH Halcrow Group INECO Landrum & Brown Inc. MMM Group Nippon Jogesuido Sekkei Co. PEG SA Tecnicas Reunidas ECUADOR Cardno CES Consulting Engineers Salzgitter GmbH Ecology & Environment Inc. Geodata SpA GITEC Consult GmbH Halcrow Group Landrum & Brown Inc. MMM Group ) PageSoutherlandPage Perkins Eastman SK Engineering & Construction TAHAL Group BV Yachiyo Engineering Co. EL SALVADOR Dessau Inc. Eptisa HDR

4 Nihon Suido Consultants Co. ) Wilbur Smith Associates Inc. Yachiyo Engineering Co. GUATEMALA Cardno Delcan Corp. Dessau Inc. Eptisa HDR ) GUYANA Associated Consulting Engineers Cardno Sheladia Associates Inc. HONDURAS Beca Group Dessau Inc. HDR Hyundai Engineering Co., Steelman Partners MEXICO Acciona Infraestructuras ADPI Ausenco Burns and Roe Group Inc. Callison CDI Engineering Solutions Delcan Corp. Empresarios Agrupados exp Ghafari Associates LLC HDR IDOM INECO Ingenium International Inc. Kohn Pedersen Fox Associates PC Landrum & Brown Inc. McDermott International Inc. Mustang Engineering PageSoutherlandPage Parsons Populous Sener Ingenieria y Sistemas SA Skidmore Owings & Merrill LLP TECHNIP Thornton Tomasetti Inc. UniversalPegasus International Inc. Wilbur Smith Associates Inc. NICARAGUA Dessau Inc. Ecology & Environment Inc. Eptisa exp HDR

5 Hyundai Engineering Co., ) Technital SpA PANAMA Dessau Inc. Ecology & Environment Inc. Eptisa Geodata SpA Halcrow Group HDR INECO KlingStubbins Kohn Pedersen Fox Associates PC Sener Ingenieria y Sistemas SA Skidmore Owings & Merrill LLP Tecnicas Reunidas PARAGUAY PERU ADPI ARCADIS NV Ausenco Cardno CES Consulting Engineers Salzgitter GmbH Construction Grp. Coffey International Daewoo Engineering Co. Dessau Inc. Ecology & Environment Inc. Empresarios Agrupados Energoprojekt Holding plc GITEC Consult GmbH Gulf Interstate Engineering Co. Halcrow Group Hyundai Engineering Co., IDOM INECO Nippon Jogesuido Sekkei Co. TECHNIP Tecnicas Reunidas UniversalPegasus International Inc. Yachiyo Engineering Co. URUGUAY Halcrow Group ) PM Group TAHAL Group BV Tecnicas Reunidas VENEZUELA Acciona Infraestructuras Burns and Roe Group Inc. Construction Grp. China Power Engineering Consltg. Group Co. China Railway Group

6 Engineering for the Petroleum & Process Industries Halcrow Group INECO Italferr SpA JGC Corp. Waldemar S. Nelson And Co. Inc. ) Populous Saipem Sener Ingenieria y Sistemas SA Sinopec Engineering Inc. TAHAL Group BV TECHNIP SURINAME Associated Consulting Engineers C. CARIBBEAN ISLANDS GREATER ANTILLES Bonifica SpA Construction Grp. Dessau Inc. Eptisa exp GITEC Consult GmbH Halcrow Group INECO MMM Group Mouchel Waldemar S. Nelson And Co. Inc. Nihon Suido Consultants Co. Parsons Stanley Consultants Inc. Steelman Partners Thornton Tomasetti Inc. Yachiyo Engineering Co. PUERTO RICO Acciona Infraestructuras ARCADIS NV Callison CDI Engineering Solutions Delcan Corp. exp Gulf Interstate Engineering Co. HDR Perkins Eastman Stanley Consultants Inc. CUBA Burns and Roe Group Inc. China HuanQiu Contracting & Engineering Corp. Eptisa HDR INECO TECHNIP Tecnicas Reunidas LESSER ANTILLES Associated Consulting Engineers Cannon Design CDI Engineering Solutions Delcan Corp.

7 Dessau Inc. exp Halcrow Group HDR Hyundai Engineering Co., Kiewit Corp. MMM Group McDermott International Inc. Waldemar S. Nelson And Co. Inc. Perkins Eastman PM Group Stanley Consultants Inc. Steelman Partners TECHNIP Technital SpA Thornton Tomasetti Inc. UniversalPegasus International Inc. D. EUROPE ALBANIA Associated Consulting Engineers Bonifica SpA CES Consulting Engineers Salzgitter GmbH Ecology & Environment Inc. Eptisa Geodata SpA Italconsult MMM Group ) Technital SpA ARMENIA Aedas CES Consulting Engineers Salzgitter GmbH Eptisa GITEC Consult GmbH Halcrow Group P&T Architects & Engineers AUSTRIA ARCADIS NV Callison Empresarios Agrupados Halcrow Group HOCHTIEF AG Landrum & Brown Inc. Net Engineering International SpA Saipem AZERBAIJAN AMEC plc BESIX SA CES Consulting Engineers Salzgitter GmbH Eptisa Halcrow Group Heerim Architects & Planners Co.

8 MMM Group McDermott International Inc. NBBJ P&T Architects & Engineers Parsons PM Group Steelman Partners Temelsu International Engineering Services Inc. Thornton Tomasetti Inc. Woods Bagot BELARUS Aedas AMEC plc Eptisa Steelman Partners BELGIUM ADPI AMEC plc ARCADIS NV Empresarios Agrupados Halcrow Group INECO Insituform Technologies Inc. Kohn Pedersen Fox Associates PC Parsons PM Group Sener Ingenieria y Sistemas SA Skidmore Owings & Merrill LLP Tebodin Consultants & Engineers BULGARIA CES Consulting Engineers Salzgitter GmbH Eptisa Geodata SpA Halcrow Group HDR HOCHTIEF AG INECO Net Engineering International SpA ) Parsons PM Group TECHNIP CZECH REP. ARCADIS NV Empresarios Agrupados

9 Halcrow Group HOCHTIEF AG Kajima Corp. Kling Consult GmbH & Co International KG Kohn Pedersen Fox Associates PC Tebodin Consultants & Engineers DENMARK Halcrow Group HOCHTIEF AG INECO Mustang Engineering Parsons Tebodin Consultants & Engineers Thornton Tomasetti Inc. ESTONIA Steelman Partners FINLAND Callison Halcrow Group HOCHTIEF AG PCG Profabril Consulplano Group Sener Ingenieria y Sistemas SA FRANCE Aedas AMEC plc ARCADIS NV BESIX SA Callison Empresarios Agrupados Geodata SpA Halcrow Group HOCHTIEF AG IDOM Insituform Technologies Inc. Italferr SpA Kajima Corp. KEPCO Engineering & Construction Co. Kohn Pedersen Fox Associates PC PM Group Populous Saipem Sener Ingenieria y Sistemas SA Swanke Hayden Connell Architects Tebodin Consultants & Engineers Tecnicas Reunidas Thornton Tomasetti Inc.

10 GEORGIA Bonifica SpA Ecology & Environment Inc. Eptisa Geodata SpA Halcrow Group HDR MMM Group ) Steelman Partners TAHAL Group BV Temelsu International Engineering Services Inc. Wilbur Smith Associates Inc. GERMANY AMEC plc ARCADIS NV Callison CDI Engineering Solutions Empresarios Agrupados Halcrow Group HDR Hyder Consulting Kling Consult GmbH & Co International KG Kohn Pedersen Fox Associates PC Mustang Engineering NBBJ Net Engineering International SpA Nihon Sekkei Inc. Parsons PM Group Populous Sener Ingenieria y Sistemas SA Swanke Hayden Connell Architects Tebodin Consultants & Engineers TECHNIP Thornton Tomasetti Inc. GREECE Aedas ADPI Delcan Corp. Eptisa Geodata SpA Halcrow Group HOCHTIEF AG KEPCO Engineering & Construction Co. Kohn Pedersen Fox Associates PC Parsons Steelman Partners TECHNIP HUNGARY

11 Halcrow Group KEPCO Engineering & Construction Co. Net Engineering International SpA Tebodin Consultants & Engineers Tecnicas Reunidas IRELAND Aedas AMEC plc ARCADIS NV Callison Delcan Corp. Eptisa Geodata SpA Geosyntec Consultants GHD Pty Halcrow Group HDR Hyder Consulting IDOM Kohn Pedersen Fox Associates PC Mouchel NBBJ Parsons Populous Skidmore Owings & Merrill LLP ITALY Aedas ADPI AMEC plc ARCADIS NV Ausenco Callison Consolidated Contractors Group Empresarios Agrupados Eptisa Geosyntec Consultants Halcrow Group HDR INECO Kohn Pedersen Fox Associates PC MMM Group Waldemar S. Nelson And Co. Inc. Parsons Saipem Sener Ingenieria y Sistemas SA Skidmore Owings & Merrill LLP Steelman Partners TECHNIP LATVIA Aedas

12 Empresarios Agrupados Halcrow Group IDOM LITHUANIA AMEC plc KEPCO Engineering & Construction Co. PEG SA Structoris MOLDOVA MOLDOVA Cardno Eptisa ) PM Group NETHERLANDS AMEC plc BESIX SA Callison Delcan Corp. Empresarios Agrupados Halcrow Group Insituform Technologies Inc. Kohn Pedersen Fox Associates PC Mustang Engineering NBBJ Net Engineering International SpA PM Group Sener Ingenieria y Sistemas SA Steelman Partners TECHNIP Tecnicas Reunidas NORWAY Halcrow Group Mustang Engineering NBBJ Parsons Saipem Sener Ingenieria y Sistemas SA POLAND Acciona Infraestructuras Aedas ARCADIS NV Callison CES Consulting Engineers Salzgitter GmbH Coffey International

13 Delcan Corp. Halcrow Group HOCHTIEF AG IDOM Insituform Technologies Inc. Kajima Corp. Landrum & Brown Inc. Net Engineering International SpA PM Group Sener Ingenieria y Sistemas SA TAHAL Group BV Tebodin Consultants & Engineers TECHNIP Technital SpA PORTUGAL Empresarios Agrupados Eptisa Geodata SpA Halcrow Group HDR IDOM INECO Parsons Sener Ingenieria y Sistemas SA Tecnicas Reunidas ROMANIA AMEC plc ARCADIS NV Associated Consulting Engineers Bonifica SpA CES Consulting Engineers Salzgitter GmbH Empresarios Agrupados Eptisa Halcrow Group HOCHTIEF AG Hyder Consulting IDOM Italferr SpA KEPCO Engineering & Construction Co. KlingStubbins ) Parsons PM Group Sener Ingenieria y Sistemas SA TAHAL Group BV Tebodin Consultants & Engineers Technital SpA RUSSIA Aedas ADPI AMEC plc Ausenco Belt Collins Burns and Roe Group Inc. Callison Cannon Design CDI Engineering Solutions

14 Construction Grp. China Petroleum Pipeline Eng'g Corp. China Power Engineering Consltg. Group Co. China Railway Construction Corp. China Tianchen Engineering Corp. Chiyoda Corp. Daewoo Engineering Co. D'Appolonia SpA Delcan Corp. Empresarios Agrupados Energoprojekt Holding plc Eptisa Geodata SpA Gulf Interstate Engineering Co. Halcrow Group Heerim Architects & Planners Co. Hefei Cement Research & Design Institute HOCHTIEF AG IDOM INECO JGC Corp. KlingStubbins MMM Group McDermott International Inc. Mustang Engineering NBBJ Waldemar S. Nelson And Co. Inc. PEG SA Perkins Eastman PM Group Populous POSCO Engineering & Construction Punj Lloyd Sener Ingenieria y Sistemas SA Skidmore Owings & Merrill LLP Stanley Consultants Inc. Steelman Partners Structoris Swanke Hayden Connell Architects TAHAL Group BV Tebodin Consultants & Engineers TECHNIP Tecnicas Reunidas Thornton Tomasetti Inc. Woods Bagot SLOVAKIA Empresarios Agrupados Ghafari Associates LLC HOCHTIEF AG PM Group Tebodin Consultants & Engineers SPAIN Callison Kohn Pedersen Fox Associates PC Skidmore Owings & Merrill LLP TECHNIP Woods Bagot SWEDEN Aedas AMEC plc

15 HOCHTIEF AG Parsons PM Group Sener Ingenieria y Sistemas SA TECHNIP SWITZERLAND Acciona Infraestructuras AMEC plc ARCADIS NV Callison CDI Engineering Solutions Empresarios Agrupados HOCHTIEF AG Hyundai Engineering Co., Insituform Technologies Inc. P&T Architects & Engineers Parsons PM Group Saipem Sener Ingenieria y Sistemas SA Skidmore Owings & Merrill LLP Steelman Partners Wilbur Smith Associates Inc. UKRAINE Aedas AMEC plc Cardno Eptisa Halcrow Group HOCHTIEF AG ) PageSoutherlandPage PEG SA Perkins Eastman PM Group Tebodin Consultants & Engineers UNITED KINGDOM Aedas ARCADIS NV Associated Consulting Engineers Callison Cardno CDI Engineering Solutions Coffey International Consolidated Contractors Group Delcan Corp. Empresarios Agrupados Eptisa Geosyntec Consultants GHD Pty HDR HOCHTIEF AG IDOM Ingenium International Inc. Insituform Technologies Inc.

16 Kajima Corp. Kohn Pedersen Fox Associates PC Landrum & Brown Inc. Lend Lease Group McDermott International Inc. WL Meinhardt Group Pty Mustang Engineering NBBJ Net Engineering International SpA Nihon Sekkei Inc. Opus International Consultants Parsons PM Group Populous Punj Lloyd Saipem Sener Ingenieria y Sistemas SA Skidmore Owings & Merrill LLP Stanley Consultants Inc. Swanke Hayden Connell Architects Tecnicas Reunidas Thornton Tomasetti Inc. UniversalPegasus International Inc. Versar Inc. Rafael Vinoly Architects PC Woods Bagot YUGOSLAVIA (FORMER) Aedas Associated Consulting Engineers CES Consulting Engineers Salzgitter GmbH China Chengda Engineering Co. D'Appolonia SpA INECO Italferr SpA MMM Group PM Group TAHAL Group BV Tebodin Consultants & Engineers BOSNIA & HERZ. Cardno D'Appolonia SpA Energoprojekt Holding plc Eptisa Italferr SpA PM Group CROATIA CES Consulting Engineers Salzgitter GmbH D'Appolonia SpA Eptisa INECO Italferr SpA Kling Consult GmbH & Co International KG PM Group FYR MACEDONIA CES Consulting Engineers Salzgitter GmbH D'Appolonia SpA Energoprojekt Holding plc Eptisa Halcrow Group IDOM )

17 SLOVENIA E. MIDDLE EAST AFGHANISTAN Bonifica SpA Cannon Design Cardno Ecology & Environment Inc. Halcrow Group ) P&T Architects & Engineers PM Group Sheladia Associates Inc. Stanley Consultants Inc. Versar Inc. Wilbur Smith Associates Inc. Yachiyo Engineering Co. BAHRAIN Aedas ADPI Associated Consulting Engineers Chiyoda Corp. Halcrow Group HDR Hyder Consulting Ingenium International Inc. KEO International Consultants WLL Khatib & Alami Kling Consult GmbH & Co International KG Larsen & Toubro MMM Group WL Meinhardt Group Pty Mouchel Mustang Engineering P&T Architects & Engineers Parsons PCG Profabril Consulplano Group Skidmore Owings & Merrill LLP Stanley Consultants Inc. Tebodin Consultants & Engineers Rafael Vinoly Architects PC Woods Bagot CYPRUS Associated Consulting Engineers Delcan Corp. Energoprojekt Holding plc Halcrow Group TAHAL Group BV Woods Bagot IRAN ADPI Arabtech Jardaneh Associated Consulting Engineers Beca Group Construction Grp. China Tianchen Engineering Corp. Geodata SpA

18 ) Sener Ingenieria y Sistemas SA Sinopec Engineering Inc. IRAQ ADPI Arabtech Jardaneh Associated Consulting Engineers Cardno China Petroleum Pipeline Eng'g Corp. Chiyoda Corp. Coffey International Daewoo Engineering Co. Halcrow Group Heerim Architects & Planners Co. IDOM JGC Corp. KEPCO Engineering & Construction Co. Khatib & Alami Kling Consult GmbH & Co International KG Landrum & Brown Inc. Net Engineering International SpA Nihon Suido Consultants Co. Nippon Jogesuido Sekkei Co. ) Populous Saipem Stanley Consultants Inc. TECHNIP Technital SpA Thornton Tomasetti Inc. Versar Inc. Wilbur Smith Associates Inc. ISRAEL Arabtech Jardaneh Delcan Corp. Ecology & Environment Inc. Mustang Engineering Perkins Eastman TAHAL Group BV TECHNIP Tecnicas Reunidas Thornton Tomasetti Inc. JORDAN ADPI Associated Consulting Engineers Callison Cardno Daewoo Engineering Co. Ecology & Environment Inc. Energoprojekt Holding plc Engineering for the Petroleum & Process Industries exp GITEC Consult GmbH Halcrow Group IDOM Italconsult KEO International Consultants WLL Khatib & Alami Landrum & Brown Inc. Mouchel NBBJ Nihon Suido Consultants Co. ) PEG SA Stanley Consultants Inc.

19 Technital SpA Tecnicas Reunidas Thornton Tomasetti Inc. USS Cal Builders Inc. Woods Bagot KUWAIT Aedas ADPI AMEC plc Associated Consulting Engineers Belt Collins Callison CDI Engineering Solutions Construction Grp. Chiyoda Corp. Ecology & Environment Inc. Engineering Consultants Group SA Engineering for the Petroleum & Process Industries exp Halcrow Group Hyder Consulting Hyundai Engineering Co., INECO Ingenium International Inc. KEO International Consultants WLL KEPCO Engineering & Construction Co. Khatib & Alami Kling Consult GmbH & Co International KG Larsen & Toubro WL Meinhardt Group Pty Mouchel NBBJ Nippon Jogesuido Sekkei Co. ) P&T Architects & Engineers PageSoutherlandPage Parsons Perkins Eastman Sinohydro Corp. SK Engineering & Construction Skidmore Owings & Merrill LLP Stanley Consultants Inc. Tecnicas Reunidas Wilbur Smith Associates Inc. LEBANON ADPI Associated Consulting Engineers Callison Geodata SpA GITEC Consult GmbH KEO International Consultants WLL Skidmore Owings & Merrill LLP OMAN Aedas ADPI ARCADIS NV Associated Consulting Engineers Bonifica SpA Coffey International Consolidated Contractors Group Ecology & Environment Inc. Energoprojekt Holding plc Ghafari Associates LLC GHD Pty Halcrow Group Hyder Consulting Hyundai Engineering Co., INECO Ingenium International Inc. KEO International Consultants WLL Khatib & Alami Kling Consult GmbH & Co International KG Larsen & Toubro MMM Group WL Meinhardt Group Pty Mouchel

20 NBBJ Nippon Jogesuido Sekkei Co. P&T Architects & Engineers Parsons Sinohydro Corp. Tebodin Consultants & Engineers Tecnicas Reunidas Woods Bagot PAKISTAN Aedas ADPI Arabtech Jardaneh Bonifica SpA China Chengda Engineering Co. Construction Grp. China Power Engineering Consltg. Group Co. China Tianchen Engineering Corp. D'Appolonia SpA Halcrow Group Hefei Cement Research & Design Institute Hydrochina Corp. Hyundai Engineering Co., WL Meinhardt Group Pty NBBJ Nihon Suido Consultants Co. Nippon Jogesuido Sekkei Co. ) PageSoutherlandPage PEG SA Saipem Sheladia Associates Inc. Sinohydro Corp. Stanley Consultants Inc. Temelsu International Engineering Services Inc. Yachiyo Engineering Co. QATAR Aedas ADPI Arabtech Jardaneh Associated Consulting Engineers Ausenco Belt Collins BESIX SA Burns & McDonnell Callison Chiyoda Corp. Consolidated Contractors Group CTCI Corp. D'Appolonia SpA EHAF Consulting Engineers Empresarios Agrupados Energoprojekt Holding plc Engineering Consultants Group SA exp Ghafari Associates LLC GHD Pty Halcrow Group HOCHTIEF AG Hyder Consulting Ingenium International Inc. Italconsult JBA Consulting Engineers JGC Corp. KEO International Consultants WLL Khatib & Alami Kling Consult GmbH & Co International KG Kohn Pedersen Fox Associates PC Larsen & Toubro MMM Group McDermott International Inc. WL Meinhardt Group Pty NBBJ Waldemar S. Nelson And Co. Inc. Nihon Sekkei Inc. Nippon Jogesuido Sekkei Co. ) Otak Inc.

21 P&T Architects & Engineers PageSoutherlandPage Parsons PM Group Populous Punj Lloyd Sinohydro Corp. SK Engineering & Construction Skidmore Owings & Merrill LLP Stanley Consultants Inc. Tebodin Consultants & Engineers TECHNIP Technital SpA Tecnicas Reunidas Thornton Tomasetti Inc. Woods Bagot SAUDI ARABIA Aedas ADPI Arabtech Jardaneh ARCADIS NV Associated Consulting Engineers Ausenco Burns and Roe Group Inc. Callison Cannon Design Cardno CDI Engineering Solutions Construction Grp. China Railway Construction Corp. China Railway Group Chiyoda Corp. Coffey International Consolidated Contractors Group CTCI Corp. EHAF Consulting Engineers Empresarios Agrupados Engineering Consultants Group SA Engineering for the Petroleum & Process Industries exp Ghafari Associates LLC GHD Pty Halcrow Group HDR Hefei Cement Research & Design Institute Hyder Consulting Hyundai Engineering Co., IDOM INECO Ingenium International Inc. Italconsult JGC Corp. KEO International Consultants WLL KEPCO Engineering & Construction Co. Khatib & Alami Kling Consult GmbH & Co International KG KlingStubbins Landrum & Brown Inc. Larsen & Toubro MMM Group McDermott International Inc. WL Meinhardt Group Pty Mouchel Mustang Engineering NBBJ Net Engineering International SpA Nippon Jogesuido Sekkei Co. ) P&T Architects & Engineers PageSoutherlandPage Parsons PCG Profabril Consulplano Group PEG SA Perkins Eastman PM Group Sener Ingenieria y Sistemas SA SK Engineering & Construction Skidmore Owings & Merrill LLP Stanley Consultants Inc. Tebodin Consultants & Engineers TECHNIP Tecnicas Reunidas Temelsu International Engineering Services Inc. Thornton Tomasetti Inc. Wilbur Smith Associates Inc. Woods Bagot

22 Yachiyo Engineering Co. SYRIA Arabtech Jardaneh Associated Consulting Engineers Callison Cardno CES Consulting Engineers Salzgitter GmbH EHAF Consulting Engineers Empresarios Agrupados Engineering Consultants Group SA Engineering for the Petroleum & Process Industries Heerim Architects & Planners Co. Italferr SpA Khatib & Alami Nihon Suido Consultants Co. ) P&T Architects & Engineers Structoris Woods Bagot Yachiyo Engineering Co. TURKEY Aedas Cannon Design CES Consulting Engineers Salzgitter GmbH China Power Engineering Consltg. Group Co. China Tianchen Engineering Corp. Empresarios Agrupados Geodata SpA Halcrow Group Hyder Consulting Hydrochina Corp. INECO Kajima Corp. Kohn Pedersen Fox Associates PC NBBJ Net Engineering International SpA ) Saipem SK Engineering & Construction Skidmore Owings & Merrill LLP Structoris Swanke Hayden Connell Architects Tecnicas Reunidas Thornton Tomasetti Inc. U.A.E. Aedas ADPI AMEC plc Arabtech Jardaneh ARCADIS NV Associated Consulting Engineers Aurecon Beca Group Belt Collins BESIX SA Bonifica SpA Callison Cannon Design Cardno CDI Engineering Solutions China Petroleum Eng'g & Construction Corp. China Petroleum Pipeline Eng'g Corp. China Power Engineering Consltg. Group Co. Chiyoda Corp. Coffey International Consolidated Contractors Group Daewoo Engineering Co. D'Appolonia SpA

23 Ecology & Environment Inc. EHAF Consulting Engineers Energoprojekt Holding plc Engineering Consultants Group SA exp Ghafari Associates LLC GHD Pty Halcrow Group HDR Heerim Architects & Planners Co. HOCHTIEF AG Hyder Consulting Hyundai Engineering Co., IDOM Ingenium International Inc. Italconsult JBA Consulting Engineers JGC Corp. Kajima Corp. KEO International Consultants WLL KEPCO Engineering & Construction Co. Khatib & Alami Kling Consult GmbH & Co International KG KlingStubbins Kohn Pedersen Fox Associates PC Landrum & Brown Inc. Larsen & Toubro MMM Group McDermott International Inc. WL Meinhardt Group Pty Mouchel Mustang Engineering NBBJ Nihon Sekkei Inc. Nippon Jogesuido Sekkei Co. Otak Inc. P&T Architects & Engineers PageSoutherlandPage Parsons PEG SA Perkins Eastman PM Group Populous Saipem Sener Ingenieria y Sistemas SA SK Engineering & Construction Skidmore Owings & Merrill LLP Stanley Consultants Inc. Steelman Partners Tebodin Consultants & Engineers Technital SpA Tecnicas Reunidas Thornton Tomasetti Inc. USS Cal Builders Inc. Versar Inc. Rafael Vinoly Architects PC Wilbur Smith Associates Inc. Woods Bagot YEMEN, NORTH Arabtech Jardaneh Bonifica SpA CES Consulting Engineers Salzgitter GmbH China Power Engineering Consltg. Group Co. Ecology & Environment Inc. Engineering for the Petroleum & Process Industries GITEC Consult GmbH Halcrow Group Heerim Architects & Planners Co. NBBJ Sinohydro Corp. SK Engineering & Construction F. ASIA/AUSTRALIA AUSTRALIA Acciona Infraestructuras AMEC plc Aurecon Beca Group BESIX SA CDI Engineering Solutions Construction Grp. Chiyoda Corp. D'Appolonia SpA Delcan Corp.

24 Geosyntec Consultants Halcrow Group HDR HOCHTIEF AG Insituform Technologies Inc. Italferr SpA JBA Consulting Engineers JGC Corp. Kohn Pedersen Fox Associates PC Landrum & Brown Inc. McDermott International Inc. Mustang Engineering Waldemar S. Nelson And Co. Inc. Opus International Consultants P&T Architects & Engineers PageSoutherlandPage Parsons Populous SK Engineering & Construction TECHNIP Tecnicas Reunidas BANGLADESH China Chengda Engineering Co. Construction Grp. Chiyoda Corp. Ecology & Environment Inc. Halcrow Group Heerim Architects & Planners Co. MMM Group Nippon Jogesuido Sekkei Co. ) Sinohydro Corp. Wilbur Smith Associates Inc. Yachiyo Engineering Co. BRUNEI Cardno GHD Pty WL Meinhardt Group Pty BURMA China Chengda Engineering Co. Construction Grp. China Petroleum Pipeline Eng'g Corp. Hyder Consulting Hydrochina Corp. ) Sinohydro Corp. TECHNIP CHINA (P.R.C.) Aedas ADPI AMEC plc ARCADIS NV Aurecon Ausenco Beca Group Belt Collins Burns and Roe Group Inc. Callison Cannon Design Cardno CDI Engineering Solutions Coffey International CTCI Corp. Daewoo Engineering Co. D'Appolonia SpA Delcan Corp. Ecology & Environment Inc. Empresarios Agrupados Eptisa exp

25 Geodata SpA Ghafari Associates LLC GHD Pty GITEC Consult GmbH Halcrow Group HDR Heerim Architects & Planners Co. Hyder Consulting Italconsult JBA Consulting Engineers Kajima Corp. KlingStubbins Kohn Pedersen Fox Associates PC Landrum & Brown Inc. Lend Lease Group MMM Group McDermott International Inc. WL Meinhardt Group Pty Mustang Engineering NBBJ Nihon Sekkei Inc. Nihon Suido Consultants Co. ) P&T Architects & Engineers PageSoutherlandPage PCG Profabril Consulplano Group Perkins Eastman PM Group Populous Sener Ingenieria y Sistemas SA Skidmore Owings & Merrill LLP Steelman Partners Sumitomo Mitsui Construction Co. Swanke Hayden Connell Architects Tebodin Consultants & Engineers TECHNIP Tecnicas Reunidas Thornton Tomasetti Inc. Wilbur Smith Associates Inc. Woods Bagot MACAU Aedas ADPI Construction Grp. JBA Consulting Engineers Kohn Pedersen Fox Associates PC WL Meinhardt Group Pty NBBJ P&T Architects & Engineers PCG Profabril Consulplano Group Steelman Partners Wong Tung & Partners DIEGO GARCIA HONG KONG Aedas Aurecon Belt Collins Delcan Corp. GHD Pty Halcrow Group Hyder Consulting Insituform Technologies Inc. Kajima Corp. Kohn Pedersen Fox Associates PC Landrum & Brown Inc. WL Meinhardt Group Pty NBBJ Populous Skidmore Owings & Merrill LLP Wilbur Smith Associates Inc. Woods Bagot INDIA Aedas

26 ARCADIS NV Ausenco Belt Collins Bonifica SpA Burns and Roe Group Inc. Callison China Power Engineering Consltg. Group Co. China Railway Group CTCI Corp. D'Appolonia SpA Ecology & Environment Inc. Empresarios Agrupados exp Geodata SpA Ghafari Associates LLC GHD Pty GITEC Consult GmbH Gulf Interstate Engineering Co. Halcrow Group Hyder Consulting Hyundai Engineering Co., INECO Ingenium International Inc. Insituform Technologies Inc. Italferr SpA KEO International Consultants WLL KEPCO Engineering & Construction Co. Kohn Pedersen Fox Associates PC Landrum & Brown Inc. MMM Group McDermott International Inc. WL Meinhardt Group Pty Mustang Engineering NBBJ Net Engineering International SpA Nihon Sekkei Inc. Nihon Suido Consultants Co. Nippon Jogesuido Sekkei Co. ) P&T Architects & Engineers PageSoutherlandPage Perkins Eastman PM Group Populous POSCO Engineering & Construction Saipem Sener Ingenieria y Sistemas SA SEPCO Electric Power Construction Corp. Sheladia Associates Inc. SK Engineering & Construction Skidmore Owings & Merrill LLP Stanley Consultants Inc. Steelman Partners Sumitomo Mitsui Construction Co. TAHAL Group BV Tebodin Consultants & Engineers Technital SpA Thornton Tomasetti Inc. Wilbur Smith Associates Inc. Woods Bagot Yachiyo Engineering Co. INDONESIA Aedas AMEC plc Aurecon Ausenco Beca Group Belt Collins Bonifica SpA Burns and Roe Group Inc. Callison Cardno China Chengda Engineering Co. Construction Grp. China Power Engineering Consltg. Group Co. Chiyoda Corp. Coffey International GHD Pty GITEC Consult GmbH Halcrow Group

27 Hefei Cement Research & Design Institute Hyder Consulting Hydrochina Corp. Hyundai Engineering Co., JGC Corp. Kajima Corp. KEPCO Engineering & Construction Co. Kohn Pedersen Fox Associates PC MMM Group McDermott International Inc. WL Meinhardt Group Pty Waldemar S. Nelson And Co. Inc. Nihon Sekkei Inc. Nihon Suido Consultants Co. ) P&T Architects & Engineers PEG SA PM Group SEPCO Electric Power Construction Corp. Sheladia Associates Inc. Sinohydro Corp. Sinopec Engineering Inc. SK Engineering & Construction TECHNIP Thornton Tomasetti Inc. Wilbur Smith Associates Inc. Yachiyo Engineering Co. JAPAN ADPI Belt Collins Callison Empresarios Agrupados HDR Hyundai Engineering Co., Kajima Corp. Kohn Pedersen Fox Associates PC Nippon Jogesuido Sekkei Co. Perkins Eastman PM Group Sener Ingenieria y Sistemas SA Skidmore Owings & Merrill LLP Stanley Consultants Inc. Thornton Tomasetti Inc. KAZAKHSTAN AMEC plc Associated Consulting Engineers Ausenco Cardno CES Consulting Engineers Salzgitter GmbH China Petroleum Pipeline Eng'g Corp. D'Appolonia SpA Energoprojekt Holding plc Gulf Interstate Engineering Co. HDR Hyder Consulting Hydrochina Corp. KEPCO Engineering & Construction Co. MMM Group Mustang Engineering NBBJ Waldemar S. Nelson And Co. Inc. P&T Architects & Engineers TAHAL Group BV Thornton Tomasetti Inc. KOREA, SOUTH ADPI AMEC plc

28 ARCADIS NV Belt Collins Callison Cannon Design CDI Engineering Solutions China Chengda Engineering Co. D'Appolonia SpA exp Halcrow Group HDR Heerim Architects & Planners Co. KlingStubbins Kohn Pedersen Fox Associates PC Landrum & Brown Inc. NBBJ Waldemar S. Nelson And Co. Inc. ) P&T Architects & Engineers Perkins Eastman Skidmore Owings & Merrill LLP Steelman Partners Thornton Tomasetti Inc. Wilbur Smith Associates Inc. KOREA, NORTH Hydrochina Corp. KYRGYZSTAN Construction Grp. GITEC Consult GmbH Temelsu International Engineering Services Inc. MALAYSIA Aedas Beca Group Belt Collins Burns and Roe Group Inc. Callison Cardno Construction Grp. Chiyoda Corp. D'Appolonia SpA ENGlobal Geodata SpA Geosyntec Consultants Ghafari Associates LLC GHD Pty Halcrow Group Hydrochina Corp. Hyundai Engineering Co., JGC Corp. Kajima Corp. KEPCO Engineering & Construction Co. Kohn Pedersen Fox Associates PC McDermott International Inc. WL Meinhardt Group Pty Mustang Engineering NBBJ Waldemar S. Nelson And Co. Inc. Nippon Jogesuido Sekkei Co. ) P&T Architects & Engineers Sinohydro Corp. Sinopec Engineering Inc. Skidmore Owings & Merrill LLP TECHNIP

29 Wilbur Smith Associates Inc. Yachiyo Engineering Co. NEPAL Construction Grp. GITEC Consult GmbH Hydrochina Corp. KEPCO Engineering & Construction Co. MMM Group Nippon Jogesuido Sekkei Co. Sheladia Associates Inc. Sinohydro Corp. Wilbur Smith Associates Inc. Yachiyo Engineering Co. NEW ZEALAND Aurecon Cardno CDI Engineering Solutions Coffey International GHD Pty Halcrow Group Landrum & Brown Inc. P&T Architects & Engineers Populous TECHNIP Thornton Tomasetti Inc. Woods Bagot PACIFIC ISLANDS Ausenco Beca Group Belt Collins Cardno Coffey International GHD Pty HDR MMM Group Nihon Sekkei Inc. Nippon Jogesuido Sekkei Co. Sinohydro Corp. Yachiyo Engineering Co. PAPUA N.GUINEA AMEC plc Ausenco Beca Group Bonifica SpA Cardno Construction Grp. Chiyoda Corp. Coffey International D'Appolonia SpA GHD Pty JGC Corp. Waldemar S. Nelson And Co. Inc. Nihon Suido Consultants Co. Nippon Jogesuido Sekkei Co. PageSoutherlandPage Parsons PHILIPPINES Aurecon Ausenco Beca Group Belt Collins Bonifica SpA Callison Cardno

30 Construction Grp. Coffey International CTCI Corp. Daewoo Engineering Co. Ecology & Environment Inc. GHD Pty Halcrow Group Heerim Architects & Planners Co. Hyundai Engineering Co., JGC Corp. Kajima Corp. KEPCO Engineering & Construction Co. Kohn Pedersen Fox Associates PC WL Meinhardt Group Pty Nippon Jogesuido Sekkei Co. ) P&T Architects & Engineers PEG SA PM Group Skidmore Owings & Merrill LLP Steelman Partners Sumitomo Mitsui Construction Co. Versar Inc. Wilbur Smith Associates Inc. Yachiyo Engineering Co. SINGAPORE Aedas Beca Group Belt Collins Callison Chiyoda Corp. Coffey International CTCI Corp. GHD Pty Halcrow Group HDR Hydrochina Corp. Insituform Technologies Inc. JGC Corp. Kajima Corp. Kohn Pedersen Fox Associates PC Lend Lease Group McDermott International Inc. WL Meinhardt Group Pty NBBJ Nihon Sekkei Inc. P&T Architects & Engineers Perkins Eastman PM Group Punj Lloyd SK Engineering & Construction Skidmore Owings & Merrill LLP Sumitomo Mitsui Construction Co. TECHNIP SRI LANKA Associated Consulting Engineers Belt Collins Cardno Construction Grp. China Power Engineering Consltg. Group Co. Halcrow Group Hyundai Engineering Co., Nihon Suido Consultants Co. Nippon Jogesuido Sekkei Co. ) P&T Architects & Engineers Sinohydro Corp. Yachiyo Engineering Co.

31 TAIWAN (R.O.C.) Belt Collins Burns and Roe Group Inc. Empresarios Agrupados HDR Kajima Corp. KEPCO Engineering & Construction Co. Kohn Pedersen Fox Associates PC Lend Lease Group NBBJ Nihon Suido Consultants Co. P&T Architects & Engineers Thornton Tomasetti Inc. Woods Bagot TAJIKISTAN Cardno Construction Grp. GITEC Consult GmbH ) Temelsu International Engineering Services Inc. THAILAND Aurecon Ausenco Belt Collins Burns and Roe Group Inc. Callison CTCI Corp. Daewoo Engineering Co. Halcrow Group Hyundai Engineering Co., Kajima Corp. Landrum & Brown Inc. McDermott International Inc. WL Meinhardt Group Pty NBBJ ) P&T Architects & Engineers Perkins Eastman Sinohydro Corp. SK Engineering & Construction TECHNIP Thornton Tomasetti Inc. Wilbur Smith Associates Inc. Yachiyo Engineering Co. TURKMENISTAN Cardno China HuanQiu Contracting & Engineering Corp. Chiyoda Corp. Hyundai Engineering Co., ) TECHNIP UZBEKISTAN Bonifica SpA Cardno China Chengda Engineering Co.

32 China Petroleum Pipeline Eng'g Corp. China Tianchen Engineering Corp. Eptisa ) PEG SA PM Group Structoris Temelsu International Engineering Services Inc. VIETNAM Aedas AMEC plc ARCADIS NV Aurecon Beca Group Belt Collins Bonifica SpA Burns and Roe Group Inc. Cardno CDI Engineering Solutions CES Consulting Engineers Salzgitter GmbH China Chengda Engineering Co. Construction Grp. China Power Engineering Consltg. Group Co. China Railway Group China Tianchen Engineering Corp. CTCI Corp. Daewoo Engineering Co. Eptisa exp Geodata SpA GHD Pty Halcrow Group Heerim Architects & Planners Co. Hefei Cement Research & Design Institute Hydrochina Corp. Hyundai Engineering Co., JBA Consulting Engineers Kajima Corp. MMM Group McDermott International Inc. WL Meinhardt Group Pty NBBJ Nihon Sekkei Inc. Nihon Suido Consultants Co. ) P&T Architects & Engineers PageSoutherlandPage Perkins Eastman PM Group POSCO Engineering & Construction Sinopec Engineering Inc. SK Engineering & Construction Skidmore Owings & Merrill LLP Steelman Partners Sumitomo Mitsui Construction Co. Thornton Tomasetti Inc. Wilbur Smith Associates Inc. Woods Bagot Yachiyo Engineering Co. LAOS AMEC plc Ausenco China Railway Group Daewoo Engineering Co. Geodata SpA GHD Pty GITEC Consult GmbH Hydrochina Corp. ) Sinohydro Corp. MONGOLIA Ausenco Coffey International Ecology & Environment Inc. GITEC Consult GmbH

33 KlingStubbins MMM Group ) Steelman Partners Wong Tung & Partners G. NORTH AFRICA ALGERIA Associated Consulting Engineers Atlas Group Ausenco Bonifica SpA Callison Construction Grp. China Railway Construction Corp. Chiyoda Corp. Consolidated Contractors Group D'Appolonia SpA Dessau Inc. Empresarios Agrupados Energoprojekt Holding plc exp Geodata SpA Hyundai Engineering Co., IDOM INECO Italconsult Italferr SpA JGC Corp. Kajima Corp. Khatib & Alami MMM Group ) PEG SA Saipem Sener Ingenieria y Sistemas SA Sinohydro Corp. Studi International TECHNIP Tecnicas Reunidas Yachiyo Engineering Co. EGYPT ADPI Arabtech Jardaneh ARCADIS NV Associated Consulting Engineers Ausenco BESIX SA Callison CES Consulting Engineers Salzgitter GmbH Construction Grp. Consolidated Contractors Group D'Appolonia SpA GITEC Consult GmbH Halcrow Group IDOM INECO Italferr SpA Khatib & Alami KlingStubbins MMM Group ) Perkins Eastman Skidmore Owings & Merrill LLP Stanley Consultants Inc. Tecnicas Reunidas Thornton Tomasetti Inc. Yachiyo Engineering Co. ETHIOPIA Aurecon

34 Bonifica SpA CES Consulting Engineers Salzgitter GmbH Construction Grp. China Railway Group Energoprojekt Holding plc GITEC Consult GmbH Halcrow Group Hefei Cement Research & Design Institute Hydrochina Corp. INECO Mouchel ) PageSoutherlandPage PEG SA Sheladia Associates Inc. Sinohydro Corp. Studi International TAHAL Group BV LIBYA Aedas ADPI Arabtech Jardaneh Aurecon Bonifica SpA Construction Grp. China Railway Construction Corp. Consolidated Contractors Group Engineering Consultants Group SA ENGlobal Halcrow Group Hydrochina Corp. IDOM Italferr SpA KEPCO Engineering & Construction Co. Nippon Jogesuido Sekkei Co. Perkins Eastman Saipem Sinohydro Corp. Stanley Consultants Inc. Structoris Studi International Temelsu International Engineering Services Inc. Wilbur Smith Associates Inc. MOROCCO ADPI Ausenco BESIX SA Bonifica SpA CES Consulting Engineers Salzgitter GmbH Construction Grp. Coffey International D'Appolonia SpA Ecology & Environment Inc. Geodata SpA GITEC Consult GmbH Halcrow Group IDOM INECO KEPCO Engineering & Construction Co. Khatib & Alami ) PCG Profabril Consulplano Group PEG SA Perkins Eastman Saipem Tecnicas Reunidas Yachiyo Engineering Co.

35 NIGER CES Consulting Engineers Salzgitter GmbH Construction Grp. China Petroleum Pipeline Eng'g Corp. KlingStubbins Sheladia Associates Inc. Studi International SOMALIA SUDAN Construction Grp. China Petroleum Eng'g & Construction Corp. EHAF Consulting Engineers Engineering Consultants Group SA GITEC Consult GmbH Halcrow Group Hefei Cement Research & Design Institute Khatib & Alami ) Sheladia Associates Inc. Sinohydro Corp. Studi International Yachiyo Engineering Co. SUB SAHARA ADPI CES Consulting Engineers Salzgitter GmbH Construction Grp. China Petroleum Eng'g & Construction Corp. China Petroleum Pipeline Eng'g Corp. Hyundai Engineering Co., INECO Waldemar S. Nelson And Co. Inc. Sheladia Associates Inc. Studi International Technital SpA TUNISIA Associated Consulting Engineers Bonifica SpA Halcrow Group Hyundai Engineering Co., IDOM Khatib & Alami MMM Group PEG SA Sener Ingenieria y Sistemas SA Tecnicas Reunidas Yachiyo Engineering Co. H. CENTRAL AND SOUTHERN AFRICA ANGOLA Aurecon Cardno Construction Grp. China Power Engineering Consltg. Group Co. China Railway Construction Corp. Ecology & Environment Inc. Halcrow Group Italconsult Mustang Engineering

36 Waldemar S. Nelson And Co. Inc. Parsons PCG Profabril Consulplano Group PEG SA Saipem Sinohydro Corp. TAHAL Group BV TECHNIP BENIN Construction Grp. Nihon Sekkei Inc. PEG SA Studi International BOTSWANA Associated Consulting Engineers Aurecon China Power Engineering Consltg. Group Co. NBBJ Sinohydro Corp. TAHAL Group BV BURKINA FASO Bonifica SpA Cardno JBA Consulting Engineers ) PageSoutherlandPage Studi International BURUNDI Studi International CAMEROON ADPI BESIX SA CES Consulting Engineers Salzgitter GmbH Sinohydro Corp. Studi International UniversalPegasus International Inc. CAPE VERDE IS. Construction Grp. INECO PCG Profabril Consulplano Group Studi International CONGO Construction Grp. Waldemar S. Nelson And Co. Inc.

37 ) PageSoutherlandPage Saipem Sinohydro Corp. Studi International GABON Acciona Infraestructuras ADPI China Tianchen Engineering Corp. Sinohydro Corp. Studi International GAMBIA GHANA Associated Consulting Engineers Aurecon Bonifica SpA CES Consulting Engineers Salzgitter GmbH Coffey International Halcrow Group Hydrochina Corp. PageSoutherlandPage Perkins Eastman Sinohydro Corp. Studi International TAHAL Group BV Yachiyo Engineering Co. GUINEA ADPI Bonifica SpA CES Consulting Engineers Salzgitter GmbH Construction Grp. China Power Engineering Consltg. Group Co. Geodata SpA Hydrochina Corp. Mustang Engineering PageSoutherlandPage Studi International USS Cal Builders Inc. Yachiyo Engineering Co. IVORY COAST CES Consulting Engineers Salzgitter GmbH Studi International KENYA ADPI Aurecon Ausenco Cardno CES Consulting Engineers Salzgitter GmbH Construction Grp. China Petroleum Pipeline Eng'g Corp. China Power Engineering Consltg. Group Co. GITEC Consult GmbH Halcrow Group HDR

38 INECO Ingenium International Inc. Mouchel Nippon Jogesuido Sekkei Co. PCG Profabril Consulplano Group Sheladia Associates Inc. Sinohydro Corp. LESOTHO Aurecon CES Consulting Engineers Salzgitter GmbH LIBERIA Ausenco Construction Grp. PageSoutherlandPage Sheladia Associates Inc. Stanley Consultants Inc. MALAWI Aurecon Cardno Construction Grp. MOZAMBIQUE Aurecon Ausenco Bonifica SpA Cardno CES Consulting Engineers Salzgitter GmbH Coffey International GITEC Consult GmbH Halcrow Group ) PCG Profabril Consulplano Group Sinohydro Corp. Studi International NIGERIA AMEC plc Associated Consulting Engineers Aurecon Construction Grp. China Power Engineering Consltg. Group Co. China Railway Construction Corp. Daewoo Engineering Co. Energoprojekt Holding plc Halcrow Group Hyundai Engineering Co., JBA Consulting Engineers KEPCO Engineering & Construction Co. KlingStubbins Mouchel Waldemar S. Nelson And Co. Inc. Net Engineering International SpA

39 P&T Architects & Engineers PCG Profabril Consulplano Group PEG SA Perkins Eastman Saipem TAHAL Group BV Tebodin Consultants & Engineers TECHNIP Thornton Tomasetti Inc. UniversalPegasus International Inc. Yachiyo Engineering Co. RWANDA Construction Grp. P&T Architects & Engineers PageSoutherlandPage Studi International SENEGAL Ausenco Bonifica SpA Nihon Sekkei Inc. ) PageSoutherlandPage PEG SA Sener Ingenieria y Sistemas SA Sheladia Associates Inc. Studi International Yachiyo Engineering Co. SIERRA LEONE Ausenco CES Consulting Engineers Salzgitter GmbH Halcrow Group Studi International Yachiyo Engineering Co. SOUTH AFRICA AMEC plc Aurecon Ausenco Belt Collins China Power Engineering Consltg. Group Co. Coffey International Delcan Corp. GHD Pty Halcrow Group HOCHTIEF AG PageSoutherlandPage Populous Yachiyo Engineering Co. SWAZILAND Aurecon TANZANIA

40 Associated Consulting Engineers Aurecon Ausenco Bonifica SpA Cardno CES Consulting Engineers Salzgitter GmbH GITEC Consult GmbH Hyundai Engineering Co., Kajima Corp. Mouchel Nippon Jogesuido Sekkei Co. ) Perkins Eastman Sinohydro Corp. Yachiyo Engineering Co. UGANDA Aurecon Bonifica SpA Cardno Heerim Architects & Planners Co. Nihon Sekkei Inc. ) P&T Architects & Engineers Sheladia Associates Inc. Technital SpA Yachiyo Engineering Co. D.R. CONGO (ZAIRE) ADPI AMEC plc CES Consulting Engineers Salzgitter GmbH Ecology & Environment Inc. Studi International ZAMBIA Associated Consulting Engineers Ausenco GITEC Consult GmbH Hydrochina Corp. Nihon Sekkei Inc. ) PEG SA ZIMBABWE Sinohydro Corp. I. ANTARCTIC/ARCTIC Hyundai Engineering Co., Net Engineering International SpA Yachiyo Engineering Co.

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 1 1 Worley Parsons Canada Worley Parsons Europe Worley Parsons Group Inc. Worley Parsons International Inc. Worley Parsons MEG Worley Parsons Services Pty 2 Fugro Brasil Fugro Chance Inc. Fugro Consultants Inc. Fugro Engineers BV Fugro Geoteam AS Fugro McClelland Marine Geosciences Inc. Fugro Muliti Client Services AS Fugro Rovtech Fugro Seacore Fugro Survey Fugro Survey Pty. 4 AMEC plc AMEC Group AMEC Inc. 6 ARCADIS NV ARCADIS Aqumen Facility Management BV ARCADIS Belgium Holding NV ARCADIS CZ as ARCADIS Deutschland GmbH ARCADIS Geotecnica SA ARCADIS Holding France SAS ARCADIS Logos Ltda. ARCADIS Nederland BV ARCADIS Profil Sp. z.o.o. ARCADIS SET Srl ARCADIS U.S. Inc. ARCADIS UK Malcolm Pirnie Inc. PRC Holding BV RTKL Associates Inc. 7 Energy & Chemicals Fluor Daniel Global Services Government Industrial & Infrastructure Oil & Gas Power 8 (Shair & Partners) D2 Consult International GmbH IPA Energy + Water Economics Landrum & Brown Perkins + Will R&H Railway Consultants Group Ross & Baruzzini Inc. T.Y. Lin International The Penspen Group 9 Inc. Services Inc. Kinhill MW Kellogg 10 Aqua Terre Solutions Inc. BAE - New Plan Group C.J. MacLellan & Associates Inc. DTI Telecom Inc. Groupe Qualitas Inc. Hydrosult Inc. Intecsa-Inarsa SA Minerconsult Engenharia Ltda. P.T. SNC-Lavalin TPS Pacific Liacon & Associates Inc. S.A. SNC-Lavalin NV SNC-Lavalin (Shanghai) International Trading SNC-Lavalin America Inc. SNC-Lavalin Australia Pty SNC-Lavalin Capital Inc. SNC-Lavalin Chile SA SNC-Lavalin Construction Inc. SNC-Lavalin Constructors Inc. SNC-Lavalin Defence Contractors Inc. SNC-Lavalin Devonyx Inc. SNC-Lavalin Energy Control Systems Inc. SNC-Lavalin Engineering India Pvt. SNC-Lavalin Engineers & Constructors Inc. SNC-Lavalin Environment Inc. SNC-Lavalin Maghreb EURL SNC-Lavalin Nuclear Inc. SNC-Lavalin Operations & Maintenance Inc. SNC-Lavalin PAE Inc. SNC-Lavalin Peru SA SNC-Lavalin Pharma Inc. SNC-Lavalin Polska Sp. z.o.o. SNC-Lavalin Projetos Ltda. SNC-Lavalin SAS SNC-Lavalin U.K. Societe d'expertise et d'ingenierie LGL SA SPAN Consultants Pvt. Spectrol Energy Services Inc. 11 Balfour Beatty Balfour Beatty Capital Group Inc. Balfour Beatty Engineering Services Balfour Beatty Capital Balfour Beatty Construction Northern Balfour Beatty Construction Scottish & Southern Balfour Beatty Construction Services UK Balfour Beatty Construction US Balfour Beatty Infrastructure Inc. Balfour Beatty Major Civil Engineering Balfour Beatty Rail Germany & Austria

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 2 Balfour Beatty Rail Inc. Balfour Beatty Rail International Balfour Beatty Rail UK Balfour Beatty Regional Civil Engineering Balfour Beatty Sakti Indonesia Balfour Beatty Utility Solutions BK Gulf Dutco Balfour Beatty Gammon Heery International Mansell Construction Services Parsons Brinckerhoff 12 Tecnicas Reunidas Espindesa INITEC Plantas Industriales Technicas Reunidas Internacional Termotecnica TR Ecologia 13 Bantrel Co. Communications Construction Operations Inc. Corp. Oil, Gas & Chemicals Power Corp. Systems and Infrastructure Inc. 14 Hatch Mott MacDonald Mott MacDonald Hong Kong Mott MacDonald Ireland Mott MacDonald Mott MacDonald Private Mott MacDonald South Africa (Pty) 15 Arup Services New York Arup Associates Arup Botswana Arup bv Arup Canada Inc. Arup GmbH Arup Group Arup Hellas EPE Arup MMLS Arup Pty (Australia) Arup Pty (South Africa) Arup Singapore Pte Arup srl Design Research Associates Ove Arup & Partners California Ove Arup & Partners Danmark A/S Ove Arup & Partners Hong Kong Ove Arup & Partners International Ove Arup & Partners Ireland Ove Arup & Partners Japan Ove Arup & Partners Korea Ove Arup & Partners Ove Arup & Partners Mauritius Ove Arup & Partners Nigeria Ove Arup & Partners PC Ove Arup & Partners SA Ove Arup & Partners Scotland Ove Arup & Partners Sp. zoo Ove Arup & Partners Thailand 16 Advatech LLC Aman Environmental Construction Inc. Banshee Construction Cash & Associates Inc. Cleveland Wrecking Co. EC Driver & Associates Inc. Lear Siegler Services Inc. Scott Wilson Inc. URS Energy & Construction Inc. URS Federal Services Inc. W.G. Bolivia SRL Washington Group Northern WG Deutschland GmbH WG Jamaica WG Latin America 18 TECHNIP Technip Brazil Technip France Technip Germany Technip Italy Technip Malaysia Technip Norge AS Technip UK Technip USA 19 China Facilities Management Investments Investments UK North America Inc. Faithful+Gould Inc. Faithful+Gould Peter R. Brown Construction Inc. WS & Partners Overseas WS Insurance (Guernsey) WS International 20 CH2M Hill Canada CH2M Hill Constructors Inc. CH2M Hill Constructors International Inc. CH2M Hill Energy CH2M Hill Global Inc. CH2M Hill Hanford CH2M Hill Inc. CH2M Hill Industrial Design Group & Construction Inc. CH2M Hill International CH2M Hill International

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 3 CH2M Hill Plateau Remediation Co. CH2M Hill Trigon Inc. CH2M Hill-WG Idaho LLC Lockwood Greene Inc. Operations Management International Inc. 21 BnS Contracting NV Ginger SA Grontmij Carl Bro a/s Grontmij Carl Bro Pavement Consultants AB Grontmij Carl Bro Vietnam Company Grontmij AB Grontmij Assetmanagement Holding BV Grontmij Beheer Reststoffen Projecten BV Grontmij Business Services BV Grontmij Canor Kft. Grontmij Capital Consultants BV Grontmij Climate & Energy Grontmij Energikonsult AB Grontmij GmbH Grontmij Group Grontmij Industry NV Grontmij Ireland Grontmij Grontmij Maunsell ICS BV Grontmij Nederland BV Grontmij Nederland Holding BV Grontmij Nederland Ontwikkeling BV Grontmij Nederland Projecten BV Grontmij Polska Sp. z.o.o. Grontmij Stockholm Konsult AB Grontmij Vastgoed Holding BV Grontmij Vastgoedmanagement BV Grontmij Wallonie NV Grontmij Water & Reststoffen Contracting BV Ingenieursbureau Het Noorden BV Kontrola GmbH & Co KG Libost Groep NV MaasBilt BV Naarderbos Ontwikkeling BV Roger Preston Group Trett Whitelaw Turkington Landscape Architects 22 Hatch Africa (Pty) Hatch Associates Consultants Inc. Hatch Associates Hatch Associates Pty. Hatch Consultoria e Gerenciamento de Empreendimentos Ltda. Hatch Engineering and Consulting LLC Hatch Engineering and Consulting LLC Hatch Ingenieros y Consultores Hatch Hatch Mott Macdonald Group Inc. Hatch Nouvelle Caledonie Hatch Project Consulting (Shanghai) Co. Hatch Pte Ltd Singapore Hatch Saudi Arabia LLC Hatch Technologies 23 WSP Asia WSP Cantor Seinuk WSP Environment and Energy WSP Europe WSP Flack + Kurtz WSP Lincolne Scott WSP Middle East WSP Sells WSP South Africa WSP UK 24 Geometrik 1 Stockholm AB Golder Associates (HK) Golder Associates (Hungary) Kft. Golder Associates (NZ) Golder Associates (Philippines) Inc. Golder Associates (PT Geotechnical & Environmental Services Indonesia) Golder Associates (Singapore) Pte. Golder Associates (UK) Golder Associates A/S Golder Associates AB Golder Associates Africa (Pty) Golder Associates Argentina SA Golder Associates AS Golder Associates Brasil Consultoria e Projectos Ltda. Golder Associates Consulting (India) Pvt. Golder Associates Consulting (China) Golder Associates Consulting (Ireland) Golder Associates Europe Golder Associates Global Iberica SL Golder Associates GmbH Golder Associates Inc. Golder Associates Innovative Application (GAIA) Inc. Golder Associates Golder Associates Oy Golder Associates Panama SA Golder Associates Peru SA Golder Associates Portugal Lda. Golder Associates Pty. Golder Associates SA Golder Associates sarl Golder Construction Services Inc. Golder Italia Srl Golder NC sarl Golder Paste Technology Hydroqual Laboratories Zitholele Consulting (Pty) 25 CM Oy Pöyry Deutschland GmbH

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 4 Energy AG Energy GmbH Finland Oy Infra AG Infra GmbH Pöyry Sweden AB Technologia Ltda. 26 Ramboll AB Ramboll Danmark A/S Ramboll Finland Oy Ramboll Informatik A/S Ramboll Management A/S Ramboll Norge AS Ramboll Singapore Pte. Ramboll UK Holding 27 Berger Devine Yaeger Inc. Berger, Lehman Associates PC Berger/ABAM Engineers Inc. Berger/Amman & Whitney Inc. Berger/RBA Chelbi Engineering Consultants Inc. Development Economics Group Inc. Greyhawk North America INGECAM SARL Louis Berger & Associates (R.I.) Inc. Louis Berger & Associates Inc. (Ill.) Louis Berger & Associates PC Louis Berger & Associates PC (D.C.) Louis Berger & Associates PC (Mass.) Louis Berger & Associates PC (Pa.) Louis Berger (Canada) Louis Berger (UK) Louis Berger Algerie SARL Louis Berger Asia Louis Berger Holdings Inc. Louis Berger Inc., Nigeria Louis Berger International Inc. Korea Louis Berger Nevada Inc. Louis Berger Private Consulting Inc. Louis Berger Romania Louis Berger Route Doula Yaounde SARL Louis Berger SAS Northern Fidelity Insurance Co. The (Domestic) Inc. The Inc. The Inc. (F.S.C.) The Philppines Inc. The RBA Group Urban Engineering Systems Inc. 28 Stantec Architecture Stantec Consulting Stantec Consulting Michigan Inc. Stantec Consulting Services Inc. Stantec Geomatics 30 Arabian CBI Inc. Lummus BV UK CBI Co. CBI Constructors Pty. CBI Constructors SA (Pty.) CBI Eastern Anstalt CBI Overseas LLC CBI Services Inc. CBI Venezolana SA Horton CBI Lummus Technology 31 COWI & Partners COWI AB COWI AS COWI Bahrain USA Group 32 Shaw Constructors Inc. Shaw Environmental Inc. Shaw Infrastructure Inc. Stone & Webster Canada Stone & Webster Construction Stone & Webster Inc. 33 Egis Egis Algeria Egis Avia Egis Bulagria Egis Cameroun Egis Eyser Egis France Egis India Egis Inframad Egis International Egis Kenya Egis Poland Egis Projects Egis Rail Egis Romania Egis Structures & Environment IOSIS 34 MWH Americas Inc. MWH Asia MWH Constructors Inc. MWH Enterprises MWH Europe MWH Holdings 35 Cardno Cardno Bowler Cardno ENTRIX Cardno ERI Cardno International

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 5 Cardno ITC Cardno New Zealand Cardno NSW Cardno PNG Cardno Qld Cardno TBE Cardno Victoria Cardno Western Australia Cardno WRG 36 Halcrow Group Asia Halcrow Inc. Halcrow (Consulting and Architects) Halcrow (Shanghai) Engineering Consulting Corp. Halcrow Asia Halcrow Asia Partnership Halcrow Canada Inc. Halcrow China Halcrow Consultants Sdn Bhd Halcrow Consulting India Private Halcrow Group Ireland Halcrow Inc. Halcrow International Partnership Halcrow Pacific Pty. Halcrow Pakistan (Pvt) Halcrow PDI Halcrow Romania S.R.L. Yolles Partnership Inc. 37 China Chengda Engineering Co. Xinda Supervisory Co. 38 Central & Eastern Europe Finland Industry Norway Russia Sweden 39 Sofregaz Stamicarbon Tecnimont Arabia Tecnimont do Brasil Tecnimont ICB Tecnimont SpA Tenicmont KT SpA TPI 40 AF Consult AG AF Consult OY ÅF Industry AB ÅF Infrastructure AB Lonas Technologia 41 Energy Enterprise Management Solutions Federal Services Division Telecom Water 42 Hyder Consulting Hyder Consulting (UK) Hyder Consulting Germany GMBH Hyder Consulting Hyder Consulting Middle East Hyder Consulting Pty. 43 Delcan (40%) DHV BV DHV China DHV India DHV Polska Hydroprojekt Intervistas NACO Stewart Scott International (SSI) 45 Canarail MVA Consultancy MVA Hong Kong Sotec Ingenierie Systra Consulting 46 Tetra Tech ARD Tetra Tech EC Inc. Tetra Tech EM Inc. Tetra Tech NUS The Delaney Group Wardrop, a Tetra Tech Co. 47 Aedas Aedas Architects Aedas Beijing Aedas Building Consultancy Aedas CE Sp. z.o.o. Aedas Consulting Engineers LLC Aedas Interiors Aedas Kazakhstan LLP Aedas LA LLP Aedas Aedas Macau Aedas Pte Aedas Urban Design & Landscape Aedas Vietnam Project Safety Davis Brody Bond Aedas 48 Sdn Bhd (Europe) Pty SKM Minmetal Ltda. 49 CTCI Corp. Advanced Control & System Inc. CIMAS Engineering Co.

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 6 CINDA E&C Ltd Corp. CTCI (Thailand) Co. CTCI and Partners Comapny CTCI Arabia CTCI Chemicals Corp. CTCI Machinery Corp. CTCI Overeas Co. E & C Engineering Corp. Fortune Energy Corp. HD Resources Management Corp. JingDing Engineering & Construction Co. Leading Energy Corp. Resources Engineering Service Inc. ShangDing Engineering & Construction Sino Environmental Service Corp. 50 Khatib & Alami Khatib & Alami and Partners Khatib & Alami ASA Khatib & Alami Consultants Khatib & Alami Engineering Khatib & Alami Morocco Khatib & Alami Offshore Saudi Consolidated Engineering Co. 51 McDermott International Inc. J. Ray McDermott SA The Babcock & Wilcox Co. 52 China Railway Group China Railway Civil Eng'g Group Corp. China Railway Electrification Eng'g Grp. Co. China Railway No. 1 Engineering Group Co. China Railway No. 3 Engineering Group Co. China Railway Seventh Group Co. China Railway Tunnel Group Co. 53 Parsons Parsons Commercial Technology Group Parsons Infrastructure & Technology Group Parsons Transportation Group Parsons Water & Infrastructure 57 Saipem Er Sai Caspian Contractor LLC European Maritime Commerce BV Petrex SA Saipem (P) Comercio Maritimo Lda Saipem America Inc. Saipem Asian Sdn. Bhd. Saipem Contracting Algerie Saipem Contracting Nigeria Saipem do Brasil Saipem Energy Services SpA Saipem Indonesia Saipem Nigeria Saipem SA Saipem U.K. Saudi Arabian Saipem 58 Koei Research Institute Int'l Corp. Nippon Civic Consulting Engineers Co. Nippon Koei Latin America-Caribbean Co. Nippon Koei U.K. Co. NKLAC Inc. Tamano Consultants Co. 59 WL Meinhardt Group Pty Meinhardt Facade Technology Meinhardt Infrastructure Singapore Pte. 61 Ausenco Ausenco Ausenco PSI Ausenco Sandwell Ausenco Vector 62 Mustang Engineering Global Performance PME 63 Delivery Inc. Inc. 64 LEME TE France TE India TE Roumanie Technum 65 ACE - Associated Consultants and Engineers Dipl.-Ing. Ruppmann Verbrennungsanlagen GmbH EnergoFichtner LLC Fichtner Asia Pte Fichtner Bauconsulting GmbH Fichtner Carbon Management GmbH Fichtner Congo Sarl Fichtner Consulting Engineers (India) Pvt. Fichtner Consulting Engineers Fichtner Energy sro Fichtner Engineering (Malaysia) Sdn. Bhd. Fichtner Engineering SA Fichtner Environment Srl Fichtner IT Consulting AG Fichtner Italia srl Fichtner Management Beratung AG Fichtner Pacific Engineers Inc. Fichtner Polska Sp. z.o.o. Fichtner Societe Africaine d'ingenierie sprl Fichtner Solar GmbH Fichtner Swiss Utility Partners AG Fichtner Water & Transportation GmbH FSE Portfolio Management GmbH GefaÖ mbh IKG P&S Consulting GmbH SPE Unternehmensberatung GmbH WTL Wassertechnik Leipzig GmbH 66 ILF Beratende Ingenieure AG

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 7 ILF Beratende Ingenieure GmbH ILF Consultants Inc. Bratislava sro Polska Sp. z.r.o. OOO ILF Russland Engineering & Project Management 67 Brisbane City Enterprises Pty. CEIS Pakistan Pvt Ltd Engineering General Consultant (EGC) Ltd SM Urban Pty Asia Australia Pty Bangladesh India Pvt International Pty Philippines Inc. PNG Vietnam JSC 69 Construction Grp. Beijing United Development Co. CCCC First Harbor Consultants Co. CCCC First Harbor Engineering Co. CCCC First Highway Consultants Co. CCCC First Highway Engineering Co. CCCC Fourth Harbor Consultants Co. CCCC Fourth Highway Engineering Co. CCCC Guongzhou Dredging Co. CCCC Highway & Bridge Tehcnology Consultants Co. CCCC Highway Consultants Co. CCCC Investment & Engineering Co. CCCC Investment Co. CCCC Second Harbor Consultants Co. CCCC Second Highway Consultants Co. CCCC Second Highway Engineering Co. CCCC Shanghai Dredging Co. CCCC Shanghai Equipment Engineering Co. CCCC Third Harbor Consultants Co. CCCC Third Highway Engineering Co. CCCC Tianjin Dredging Co. CCCC Tunnel Engineering Co. CCCC Water Transportation Consultants Co. CCCC Xi'an Road Construction Machinery Co. Chenzhou Road Construction Machinery Factory of CRBC Construction Co. China Harbour Engineering Co. China Highway Engineering Group Corp. China Highway Vehicle and Machinery Co. China Nat'l Communications Materials & Eqpt. Corp. China Road and Bridge Corp. Chuwa Bussan Co. CRBC International Co. Facility Management Zhong Qiao, Zhongshan, CRBC Guangzhou Port Machinery Shanghai Zhenhua Port Machinery Co. Tianjin Zhenhua Logistics Group Co. Xi'an Road Construction Machinery Factory Zhenhua Engineering (Shenzhen) Co. 72 Beca Group Beca Carter Hollings & Ferner (SE Asia) Pte. Beca Carter Hollings & Ferner Beca Infrastructure Beca Pty 74 Dessau Inc. Dessau Chile SA Dessau International Dessau Maghreb Dessau-Progest Elytra LVM LVM- HTES LVM-MERLEX SIMO Management Société Gestrans Sogep Verreault 75 Associated Consulting Engineers ACE Athens ACE Bahrain ACE Beirut ACE Jeddah Ace Jordan ACE Kuwait ACE Oman ACE Qatar ACE U.A.E. IMEG Sir Frederick Snow and Partners 76 ADPI ADPI Libya ADPI Middle East 77 Chiina CAMC Engineering Co. China Automobile Industry Eng'g Corp. China IPPR International Eng'g Corp. China Nat'l Automation Control System Corp. China Nat'l Electric Equipment Corp. China Nat'l Heavy Machinery Corp. China United Engineering Corp. Chinal Machinery Engineering Corp. No. 6 Inst. of Proj. Planning & Research of Machinery Ind. 78 000 Lahmeyer International Rus Hydroprojekt Ingenieurgesellschaft mbh Lahmeyer Agua y Energía SA Lahmeyer Berlin GmbH

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 8 Lahmeyer International (India) Pvt. Lahmeyer International USA Corp. Lahmeyer München Ingenieurgesellschaft mbh Lahmeyer Rhein-Main GmbH 80 Skidmore Owings & Merrill LLP SOM Architectural Consultants SOM Inc. 81 Artelia Engineering Italia Artelia UK CLI Coteba Argos sl Coteba BV Coteba Belgium Coteba EOOD Coteba GmbH Coteba Inc. Coteba India Private Coteba Ireland Coteba Kft. Coteba LTDA Coteba Pty Coteba s.r.o Coteba Sp. z.o.o. Coteba Sweden AB Coteba Vietnam Coteba Yonetim Ve D.H. AS OOO Coteba Rus Sogreah Algerie Sogreah China Sogreah Cyprus Sogreah Enviro Asist Sogreah Gulf Sogreah Magelis Sogreah Maroc Sogreah Middle East Sogreah Polska Someah 82 ) Asano @Kenko @Co. ATEC Co. Chuou Sekkei Eingineering Co. Oriental Consultants Co. Ories Shared Service Co. TaiseiI @Kiso @SekkeiI @Co. Yoshii @System Research Co. 84 Kohn Pedersen Fox Associates PC Kohn Pedersen Fox Associates (International) PA KPF Architecture Design & Consulting KPF GmbH KPF Korea KPF Singapore 85 CDI Engineering Solutions AndersElite CDI Anders L.R. Kimball 86 A2E Aztec Blizzard Engecorps Inalsa MEXTYPSA Tecnofisil Tecnoma Tegepsa TYPSA Maroc Sarl 87 HOCHTIEF AG Constructora Hochtief-TECSA SA Flatiron Construction Corp. HOCHTIEF (UK) Construction Hochtief Construction AG Hochtief Construction Qatar WLL Hochtief CZ as Hochtief Facility Management Energy GmbH Hochtief Facility Management GmbH Hochtief Polska Sp. z.o.o. Hochtief Projektentwicklung GmbH Hochtief Russia Leighton Holdings Streif Baulogistik GmbH The Turner Construction 88 P&T Architects & Engineers P&T Architects & Engineers P&T Architects and Engineers (Macau Branch) P&T Architects and Engineers / P&T Group International / P&T (M&E) P&T Consultants (Vietnam) Co. P&T Consultants Pte Palmer & Turner (Thailand) Palmer and Turner Consultants (Shanghai) 89 PM Group Devereux Architects (North) Devereux Architects Litd. Devereux LHC LLP PM Asia Project Services PTD PM Greene Engineers PM Group Belgium NV PM Group Polska Sp. zo.o. PM Group USA Inc. PM Group Vostok PM International Services Group srl PM Project Services Project Management Holdings Project Management International Project Management Project Management UK Holdings 91 Eptisa Eptisa Brazil Eptisa Engineering Inc. Eptisa Romania 92 Woods Bagot

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 9 Woods Bagot Architects PC Woods Bagot Asia Pty. Woods Bagot Europe Woods Bagot Pty. 93 Constructors Inc. Federal Programs Corp. International Inc. 95 China Petroleum Eng'g & Construction Corp. China Petroleum the First Construction Corp. China Petroleum the Seventh Construction Corp. CNPC East China Design Institute 96 China Power Engineering Consltg. Group Co. Center South Electric Power Design Inst. China Power Construction Engineering Consulting Corp. China Power Engineering Consulting Grp. Technology Dev't Co. East China Electric Power Design Inst. North China Elec. Power Design Inst. Eng'g Co. Northeast Electric Power Design Inst. Northwest Electric Power Design Inst. Southwest Electric Power Design Inst. 97 ENVIRON (Shanghai) Co. ENVIRON Arquipelago Brazil ENVIRON Australia Pty. ENVIRON Belgium BVBA ENVIRON CIS Russia ENVIRON Consulting Services (M) Sdn Bhd ENVIRON Corp. Finland Oy ENVIRON EC (Canada) Inc. ENVIRON France SAS ENVIRON Germany GmbH ENVIRON Hong Kong ENVIRON Iberia SL ENVIRON International Corp. ENVIRON Italy SRL ENVIRON Netherlands BV ENVIRON Poland Sp. z.o.o. ENVIRON UK ENVIRONCORP Consulting Services (S) Pte. 98 Insituform Technologies Inc. Corrpro Cos. The Bayou Cos. United Pipeline Systems 99 Ingenium International Inc. Cion Corp. Giffels Associates Giffels Corp. Giffels Inc. Giffels International Giffels of North Carolina PC Ingenium Archial Inc. NORR Architects Engineers Private NORR Architects Planners NORR Group Consultants International NORR Illinois Inc. NORR India NORR LLC NORR Architects Engineers Planners Poon McKenzie Architects Stonefield Development Westpro Constructors Inc. 100 SEPCO Electric Power Construction Corp. Shandong Elec. Power Construction No. 1 Co. Shandong Elec. Power Construction No. 2 Co. Shandong Elec. Power Piping Construction Co. 101 Opus International Consultants Joynes Pike Group U.K. Opus DaytonKnight Consultants Opus International Consultants (Australia) Pty. Opus International Consultants (Canada) Opus International Consultants (NSW) Pty. Opus International Consultants (PCA) Pty. Opus International Consultants (UK) 102 Hydrochina Corp. Hydrochina Beijing Engineering Corp. Hydrochina ChengDu Engineering Corp. Hydrochina GuiYang Engineering Corp. Hydrochina HuaDong Engineering Corp. Hydrochina International Engineering Co. Hydrochina Investment Co. Hydrochina KunMin Engineering Corp. Hydrochina XiBel Engineering Corp. Hydrochina ZhongNan Engineering Corp. 103 HDR HDR Architecture Associates Inc. HDR Architecture Inc. HDR Constructors Inc. HDR Design-Build Inc. HDR Engineering Inc. HDR Environmental Operations and Construction Inc. HDR Security Operations Inc. Hennigson, Durham & Richardson International Inc. 105 Atlas Group Atlas Genie Civil Atlas Texas Construction and Trading Inc. Atlas Yapi and Sanayi 107 Acciona Infraestructuras ACCIONA Concesiones Chile ACCIONA Concesiones SL ACCIONA Concessions Canada ACCIONA Infrastructures Australia Pty. ACCIONA Ingenieria SA ACCIONA Instalaciones Mexico SA de CV ACCIONA Instalaciones SA

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 10 ACCIONA ISL Health Victoria HoldCo ACCIONA Mantenimiento de Infraestructuras SA Capev Venezuela Freyssinet SA Mostostal Warszawa SA Necso Canada Inc. Necso Entrecanales Cubiertas Mexico SA Rodovia do Aço SA 108 Pyromet Saudi techint TEBRA Techint Chile SA Techint Compagnia Tecnica International Techint Compania Tecnica Internacional SACI Techint Compañía Técnica Internacional SACI Techint Engineering & Construction Inc. Techint Goodfellow Technologies Inc. Techint Industrial Technologies (Beijing) Co. Techint Italimpianti Deutschland GmbH Techint Italimpianti Do Brasil Ltda Techint SA de CV Techint SAC Tenova HYL technologies Tenova LOI Tenova Takraf 110 MACE Algeria Baltija Bosnia Croatia Macedonia Morocco Poland Serbia 111 Lend Lease Group Bovis Lend Lease Inc. Bovis Lend Lease Bovis Lend Lease Overseas Holdings Bovis Lend Lease Pty 112 Conestoga-Rovers & Assoc. CEG Inc. CRA Brasil CRA Contractors CRA Europe CRA I&E Inc. CRA 113 Sener Ingenieria y Sistemas SA Boreas Ingenieria y Sistemas SA Engivia-Consultores de Engenharia SA EURL Sener (Argelia) III SA DE CV NTE-Sener SA Sener Canarias Ingenieria y Sistemas SA Sener Engenharia e Sistemas Ltda. (Brasil) Sener Engineering and Systems Inc. Sener Ingenieria y Sistemas Sener Ingenieria y Sistemas Argentina SA Sener Limited (Abu Dhabi) Sener Spolka Z ograniczona Odpowiedzialnoscia Spzo Senermex Ingenieria y Sistemas SA de CV Senerpor-Engenharia e Sistemas Industrias Lda. Sociedad de Gestion de Proyectos Gestec SA 114 Larsen & Toubro L&T - MHI Turbine Generators Pvt L&T - Sargent & Lundy L&T - Valdel Engineering L&T Infrastructures Developers L&T Modular Fabrication Yard LLC L&T Urban Infrastructures Larsen & Toubro (Oman) LLC Larsen & Toubro Electromech LLC, Muscat Larsen & Toubro RMC LLC 116 Empresarios Agrupados Iberica del Espacio SA 117 Nippon Jogesuido Sekkei Co. NJS Consultants Co. 118 Punj Lloyd Dayim Punj Lloyd Kaefer Punj Lloyd PL Engineering PLN Construction PT Punj Lloyd Indonesia PT Sempec Indonesia Punj Lloyd Aviation Punj Lloyd Delta Renewables Pvt. Punj Lloyd Kazakhstan LLP Punj LLoyd Pte Punj Lloyd Upstream Sembawang Engineers and Constructors Pte Simon Carves Spectra Punj Lloyd 119 Co. KG - JBG ETC Transport Consultants GmbH GRE-Gauff Rail Engineering GmbH & Co. KG HKC KUG Ingenieure GmbH & Co. KG Engineering GmbH & Co. V.G. 122 Burns and Roe Group Inc. Burns & Roe Construction Group Burns and Roe Enterprises Inc. Burns and Roe Services Corp. 123 Populous Populous Design Pty. Populous Event Inc. Populous 125 Sinohydro Corp. Sinohydro Corp. Bureau 11 Sinohydro Corp. Bureau 13

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 11 Sinohydro Corp. Bureau 14 Sinohydro Corp. Bureau 4 Sinohydro Corp. Bureau 5 Sinohydro Corp. Bureau 7 126 TAHAL Group BV EKO-WARK Sp. z.o.o. FIDECO Doo H.P.C.-T.H.L. LLS Tahal Palgei Maim S.C. Tahal Romania SRL Sirketi Sitahal-Hagal Sulama Sistemleri Tahal Angola Tahal Consultants (Africa) Tahal Consulting Engineers Tahal Leitersdorf Tahal St. Petersburg TAHAL-KAZ TCE Via Maris Desalination Water Planning for Israel 127 Energoprojekt Holding plc Energoprojekt Entel Energoprojekt Hidroinzenjering Energoprojekt Industrija Energoprojekt Niskogradnja Energoprojekt Oprema Energoprojekt Urbanizam I Arkitectura Energoprojekt Visokogradnja 128 Ecology & Environment Inc. Beijing YiYi Ecology & Environment Engineering Ecology and Environment do Brasil Ecology and Environment do Brasil Ltda. Ecology and Environment International Services Inc. Gestion Ambiental Consultores Walsh Environmental LLC 130 Engineering for the Petroleum & Process Industries Engineering for Petroleum & Process Indus. Enppi KSA Branch 131 S&L Power Projects LLC Sargent & Lundy Canada Sargent & Lundy Engineers Sargent & Lundy Enterprises LLC Sargent & Lundy International Inc. Sargent & Lundy Pacific Sargent & Lundy Texas LLC 132 China Railway Construction Corp. Beijing Tiecheng Construction Supervision Co. China ChengHe Insurance Brokers Co. China Railway 11th Bureau Group Co. China Railway 12th Bureau Group Co. China Railway 13th Bureau Group Co. China Railway 14th Bureau Group Co. China Railway 15th Bureau Group Co. China Railway 16th Bureau Group Co. China Railway 17th Bureau Group Co. China Railway 18th Bureau Group Co. China Railway 19th Bureau Group Co. China Railway 20th Bureau Group Co. China Railway 21st Bureau Group Co. China Railway 23rd Bureau Group Co. China Railway 24th Bureau Group Co. China Railway 25th Bureau Group Co. China Railway 2nd Bureau Group Co. China Railway Construction (Beijing) Business Management Co. China Railway Construction (Caribbean) Co. China Railway Construction (HK) Co. China Railway Construction Group Co. China Railway Electrification Bureau Group Co. China Railway Fifth Survey and Design Inst. Grp. Co. China Railway First Survey and Design Inst. Grp. Co. China Railway Fourth Survey and Design Inst. Grp. Co. China Railway Material Group Co. Ltd China Railway Shanghai Design Inst. Grp. Co. China Railway System Group Co. CRCC China-Africa Construction Co. Kunming China Railway Large Road Maintenance Machinery Co. 133 Cadet International Hydratec Planitec - Planitec BTP Batiment Industries International ITS Organisation TPI Terrasol 136 China HuanQiu Contracting & Engineering Corp. China Petroleum 6th Construction Co. HQCEC Lanzhou Co. HQCEC Liaoning Co. HQCEC Xinjiang Co. HQSM Engineering Co. Huanqiu Guangye Engineering (Guangdong) Co. Huanqiu Project Management (Beijing) Co. North China Plng. & Design Inst. of China Huanqiu Contr. & Eng'g Co. Sembawang Huanqiu Eng'g Co. Shanghai Chemical Industry Design Inst. Co.

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 12 137 PCG Profabril Consulplano Group Agripro Ambiente SA Al Zayani Profabril Centra Sarl Cobrapi Engenharia Ltda. Cobrapi Gerenciamento Consultoria e Projetos Lda. Companhia Nacional SA Consulplano SA Defint SA Dune Investimentos SA Logiser SA MMM Macau Management & Maintenance Lda. PAL Asiaconsult Lda. PCG Portuguese Consulting Group Profabril Engenharia SA Profabril II SA Profabril XII SA Proman SA Prosgie SA Viatunel Lda. 139 Versar Inc. Advent Environmental GEOMET Technologies LLC PPS Versar International 140 China Int'l Water & Electric Corp. (CWE) China Int'l Water & Electric (Beijing) Corp. China Int'l Water & Electric (Fujian) Corp. China Int'l Water & Electric (Shanghai) Corp. CWE Huashui Hydropower Dev't Corp. Hongkong Resources Engineering Co. 143 Studi International SACI - West Africa Studi Algeria Studi Gabon - Central Africa Studi Libya 144 JBA Consulting Engineers JBA Asia 146 GEOS Ingenieurs Conseils Hidroprojecto Ingérop Ingerop Africa Ingerop Algerie Ingérop Conseil et Ingénierie 147 Geodata SpA Geodata Engineering SpA Geodata Geoengenharia do Brasil Ltda. Geodata India Geodata Ingénierie Algérie Sarl Hydrobarrage Srl Ingeconsult Ltda Iset Ingegneria e Servizi Tecnici Srl Sea Consulting Srl Sino-Geodata (Beijing) Eng. Consultants Co. 148 China Tianchen Engineering Corp. Tianchen Corp. Beijing Co. Tianchen Corp. Heilongjian Co. Tianchen Corp. Shanghai Co. Tianchen Corp. Thailand Co. 149 Technital SpA Technital Djibouti Srl Technital Polska Technital Romania Srl Technital Uruguay Srl 150 Net Engineering International SpA IMS GmbH Megalit 90 kft. NET Engineering EOOD NET Engineering Pvt. NET Engineering SpA Sistra 2000 Srl Spiekermann AG 151 Consolidated Contractors Group ACWA Services CCC (Underwater Engineering) Morganti Group Inc. N.P.C.C. Sicon 152 Thornton Tomasetti Inc. Thornton Tomasetti 153 ABB SpA - Process Automation Division SARPI 154 China Gezhouba Group Co. China Gezhouba Architecture Constr. Co. China Gezhouba International Co. China Gezhouba Machinery & Ship Co. Chongqing Daxihe Hydroelectric Dev. Co. Chongqing Gezhouba Explosive Co. Gezhouba Cement Co. in Wuhan Gezhouba Cement Co. in Hanchuan Gezhouba Cement Co. in Qianjiang Gezhouba Cement Co. in Xiangfang Gezhouba Cement Co. in Yichang Gezhouba Cement Co. in Yingcheng Gezhouba Cement Co. in Zaoyang Gezhouba Construction Co. Gezhouba Finance Co. Gezhouba Foreign Trade Co. Gezhouba Foundation Treatment Co. Gezhouba Haiji Real Estate Dev. Co. Gezhouba Highway & Bridge Constr. Co. Gezhouba Jiahong Co. Gezhouba Mechanical & Electrical Install. Co. Gezhouba No. 1 Construction Co. Gezhouba No. 2 Construction Co. Gezhouba No. 5 Construction Co. Gezhouba No. 6 Construction Co. Gezhouba No. 8 Construction Co. Gezhouba Power Supply Co. Gezhouba Real Estate Dev. Co.

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 13 Gezhouba Three Gorges Industry Co. Hu+bei Siping Hydroelectric Dev. Co. Hubei Daguangbei Express Highway Constr. Co. Hubei Gezhouba Testing Co. Hubei Nanhe Hydroelectric Dev. Co. Hubei Wuhan Gezhouba Industry Co. Hubei Xianfan-Jingzhou Express Highway Constr. Co. Hubei Zhongge Proj. Management Co. Sichuan Neizhu Express Highway Constr. Co. Yichang Gezhouba Consulting & Supervision Co. Zhangjiajie Gezhouba Hydroelectric Dev. Co. 157 UniversalPegasus International Inc. International Pipeline Partners Peak Power Engineering Inc. Pegasus International Quest Project Personnel UK Universal Ensco UP International Inc. 158 Mouchel Mouchel Middle East 159 NBBJ NBBJ SAn Francisco NBBJ, Beijing NBBJ, Boston NBBJ, Columbus NBBJ, Dubai NBBJ, London NBBJ, Los Angeles NBBJ, New York NBBJ, San Francisco NBBJ, Seattle NBBJ, Shanghai 160 Perkins Eastman BFJ Planning RGR Landscape Russell Design Urbanomics 162 CES Consulting Engineers Salzgitter GmbH CES Addis Ababa Office CES Bolivia Office CES Cairo Office CES Damascus Office CES Kattowice Office CES Maputo Office CES Moshi Office CES Office Baku CES Office Can Tho CES Peru Office CES San Pedro Office 163 Geosyntec Consultants Geosyntec Consultants International Inc. GSM Consultancy Sdn. Bhd. MMI Engineering Inc. MMI Engineering 164 Kajima Corp. Kajima Europe Kajima Overseas Asia Pte. Kajima Road Co. Kajima USA Inc. Taiko Trading Co. 166 Sumitomo Mitsui Construction Co. Beijing M.B.R. Construction Engineering Co. PT. SMCC Utama Indonesia SMCC (Thailand) Co. SMCC Construction India SMCC Guam Inc. SMCC Philippines Inc. SMCC Shanghai 167 Kiewit Corp. Ganotec Inc. General Construction Co. Gulf States Inc. Kiewit Building Group Inc. Kiewit Energy Co. Kiewit Industrial Canada Co. Kiewit Pacific Co. Kiewit Power Constructors Co. Kiewit Southern Co. Kiewit Western Co. Mass Electric Construction Co. Peter Kiewit Sons Co. TIC Canada Inc. TIC International Inc. TIC Maintenance Inc. TIC The Industrial Co. TIC The Industrial Co. Wyoming Inc. V.K. Mason Construction Co. Western Summit Constructors Inc. 168, London, Panama 174 Arabtech Jardaneh Arabtech Jardaneh Aseza Arabtech Jardaneh International Arabtech Jardaneh Palestine Arabtech Jardaneh Water and Environment HDP 178 Otak Inc. HLB Otak Otak Architects Inc. Otak International Otak Nevada LLC 179 Ghafari Associates LLC Ghafari-Purohit LLC G-Tech Professional Staffing Inc. 181 Wong Tung & Partners Wong & Tung International (Macao) Wong & Tung International WT (Macao)

2011 ENR Top International Design Firms Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 14 182 Gulf Interstate Engineering Co. Antares Gulf Interstate Engineering Russia Gulf Interstate Field Services L&T-Gulf Private 183 Daewoo Engineering Co. Daewoo Engineering Thailand Co. 184 PEG SA Enatec GmbH PEG Resources 185 MMM Group Algerian Autoroute Design Team Enermodal Engineering McCormick Rankin Corp. and its subsid. MMM Aviation Group SA MMM Geomatics Alberta and its subsid. MMM Geomatics Ontario MMM Group (U.S.) MMM Group Inc. MMM Group International Inc. MMR Managers Seawood Solutions and Services Inc. Site 360 Consulting Inc. 187 Innealtoiri Cumhachta Teoranta (ICT) PEC Engineers POWER Constructors Inc. (PCI) POWER Testing and Energization Inc. (PTE) 195 Swanke Hayden Connell Architects Design 360 Inc. Swanke Hayden Connell Architects Istanbul Swanke Hayden Connell Architecture SARL Swanke Hayden Connell International 197 BESIX SA B6 SOMA BESIX Park BESIX Real Estate Development SA BESIX Sanotec SA BESIX Saudi Cobelba SA Etablissement Wust SA Frankl Foundation Group Jacques Delens SA Lux TP SA Six Construct Six International Socogetra SA Vanhout NV West Construct 198 ENGlobal ENGlobal Automation ENGlobal Construction ENGlobal Engineering Inc. ENGlobal Government ENGlobal Land Inc. 199 Heerim Architects & Planners Co. Peter Pran + H Architects LLC