Interface Security Systems Holdings Inc. Imperial Capital Global Opportunities Conference Company Presentation September 18, 2014

Interface Security Systems Holdings Inc. Imperial Capital Global Opportunities Conference Company Presentation September 18, 2014

Interface at a Glance Founded in 1995 Largest national provider of managed IP physical and network security services over a Private managed PCI Compliant Nationwide Secure Broadband Network Real time monitoring of these cloud-based security services Headquarters in St. Louis, MO SunTx Capital Partners owns ~88% of the voting power of the Company ~700 Employees ~76,000 customer sites $7.4 million RMR as of June 2014; $2.9 million of installable RMR in contracted backlog $126.7 million total annual revenue for year ended December 2013 Ranked #12 in 2014 SDM 100 rankings that provide electronic security systems and services (includes both commercial and residential revenue) #7 in 2014 SDM 100 companies for most commercial installation revenue 1

Experienced Senior Management Team Michael Shaw: CEO 40+ years building and operating subscriber based service companies Founder and CEO Sonitrol Security Systems 1973-1986 Co-Founder and COO SecurityLink Corporation 1986-1991 Founder and CEO Interface since 1995 Michael McLeod: COO 30+ years of senior operations management experience in security industry General Manager API Security 1985-1993 VP Operations Sonitrol Corporation 1993-1998 National VP of Operations Security Technologies Group 1998-2000 COO of Interface since 2000 Ken Obermeyer: CFO 20+ years of senior financial management experience in security industry Various accounting positions in Ohio-based security businesses VP of Finance Centennial Security Systems 1995-1997 CFO of Interface since 1997 Chuck Moeling: Executive Vice President Sales 20+ years of strategy, sales, operations and IP technology experience 12 years consulting with Bain & Company and Accenture/Andersen Consulting Vice President of Retail at Radiant Systems (now NCR) Executive Vice President and Chief Marketing Officer with Westec Intelligent Surveillance Executive Vice President of Sales at Interface since 2013 2

Company Overview This presentation contains forward-looking statements that are based on our management s current expectations, estimates and projections about our business and operations and are subject to a number of risks and uncertainties. Our actual results may differ from the results referred to in the forward-looking statements, and such differences may be material. See Cautionary Note Regarding Forward-Looking Statements and Risk Factors in our most recent Report to Holders and Indenture Trustee.

Company Profile Interface is a leading national provider of physical security and secured network services to primarily large, commercial multi-site customers Real time monitoring of physical and logical cloud-based security services Most comprehensive technology-enabled managed security solution in the market First to market with IP enabled managed bundled service offerings 81% of revenue is contracted RMR ARPU of $97.55 up over 25% year over year Industry leading attrition rates Service Offering Physical Security Secured Network Alarm/Event Monitoring Interactive Video Surveillance Managed Access Control Fire/Life Safety Systems Secure Managed Services PCI Compliance Managed Digital Voice 4

Company History SunTx acquisition Created first to market IP Managed Service Provider in convergence of physical security and secured network services Added Michael s Stores and Dollar General to Customer Base Certification as Cisco Managed Service Channel Partner Raised $230 million in Senior Secured Notes in public markets 2001 2006 2007 2008 2009 2010 2011 2012 2013 2014 Expanded to CA, TX and upper/ lower MI with key acquisitions Acquired Loss Prevention Management: resulted in the integration of Secure Managed Broadband platform and ISS Monitoring Center Added $2.5MM of net new RMR Completed installation of 10,000+ Dollar General Stores Acquired Westec the leading provider of remote interactive video monitoring Raised $115 million in Senior Contingent Cash Pay Notes in private markets Focus on continuing to scale the business 5

Overview of Services Physical Security IP-based alarm / event monitoring Improves communication speed, safety, reliability, response times and system value Secured Network Close-looped, fast and secured managed broadband network Constantly monitored in order to ensure maximum up-time Alarm/Event Monitoring Secure Managed Services Interactive Video Surveillance Proprietary video surveillance systems linked to Interface's dedicated central station Enables on-demand, remote, interactive video monitoring with two-way audio communication PCI Compliance Strict compliance to Payment Card Industry ( PCI ) requirements allows for secure credit card payment processing Reduces risk of fines, penalties and loss of payment card privileges Managed Access Control Enterprise-wide solution Offers real-time management of physical access requirements and activity logging IP-based monitoring of fire and life safety systems Managed Digital Voice IP phone system eliminates the high cost of traditional land line systems while offering advanced features Free long distance, follow-me and unified voicemail and email Fire/Life Safety Systems Monitor and inspect all fire related systems, including detection, suppression and sprinklers Unique offering of services that combines physical and secured network security with managed services results in a compelling value proposition for customers 6

Alarm and Event Monitoring State-of-the-art IP system serves as upgrade over traditional land-line phone systems Faster & more reliable over a secure network Less expensive Faster response times Managed 24 hours a day Monitor and report events such as intrusion, fire / smoke, sprinkler and carbon monoxide levels Scheduled and random event monitoring lowers employee and customer theft, and raises overall security Ability to connect to system from any location (via smartphone, tablet or PC) with real-time updates and remote-control GSM wireless transmission as both primary means of communication and back-up Alarm verification using two-way voice and live video reduces false alarm rates and improves response times IP alarm and event monitoring offers leading value over traditional land-line alarm systems 7

Secure Managed Broadband SMB Private, closed-loop secured network infrastructure Custom configured on a store level and national scale All physical and network security services are safely and easily connected through one broadband connection Protect sales transactions and reduce the risk of fines, penalties and loss of payment card privileges Secure Operations Center ( SOC ) / Network Operations Center ( NOC ) monitors and manages the network 24/7/365 Industry leading SLAs including network availability Continuous real-time monitoring of the customers network and event notification Eliminates time and cost of managing a network for customers Large multi-site customers can retrieve point-of-sale and other store operations data from the Data Center to their back-of-house headquarters Commercial / Retail Location Data Center SOC / NOC Interface has adopted its life safety / emergency response culture and has applied the same quality of service and level of urgency in monitoring SMB 8

Digital Witness Interactive Video Proprietary video surveillance technology - allows for remote event-based monitoring Offered through Westec acquisition (now rebranded as Digital Witness) in March 2012 ~4,400 active monitoring sites in the luxury retail, dining, QSR and hospitality vertical sectors Interactive services include: Video tours Video verification Rapid response Video escorts Snapshot audits Largest, most sophisticated interactive video monitoring Central Command Center ( C3 ) in the U.S. located in Plano, Texas handling over 2.0 million events per year Only Dual Certified Video Monitoring Center in U.S. Proprietary technology enables best-in-class video surveillance service offering that is unrivaled in the industry 9

Sampling of National Customers Retail Jewelry QSR Chain Restaurant C-Store Lodging/ Hospitality Transportation 10

Nationwide Sales and Service Coverage Salt Lake City, UT St. Louis, MO Dallas, TX Atlanta, GA SOC/NOC Data Center Regional Service Center Field Technicians Nationwide coverage through regional service centers, field technicians and partner networks allows Interface to serve approximately 76,000 customer sites 11

ARPU and RMR ARPU of $97.55 $134.31 for commercial customers $30.43 for residential customers Average net attrition rate of 9.8% 89.2% of RMR from commercial customers Focus on large, established national customers with multi-site operations Reduce exposure to attrition $160.0 $140.0 $120.0 $100.0 $80.0 $60.0 $40.0 $20.0 $0.0 ARPU 2009 2010 2011 2012 2013 2Q14 Commercial Accounts Residential Accounts Historical Average Net Attrition RMR Commercial vs. Residential ($ in millions) 12.0% 8.0% $10.0 $8.0 $6.0 59.3% 63.5% 70.3% 77.8% 79.8% $1.7 $1.7 89.2% $0.8 100.0% 4.0% 8.5% 9.4% 8.2% 8.4% 10.0% 9.8% $4.0 $2.0 $1.6 $2.3 $1.6 $2.9 $1.7 $4.1 $6.1 $6.7 $6.6 0.0% 2009 2010 2011 2012 2013 2Q14 $0.0 10.0% 2009 2010 2011 2012 2013 2Q14 Commercial Accounts Residential Accounts % of RMR - Commercial Bundled service offering leads to higher than industry ARPU and low attrition rates 12

Industry Overview

Security Monitoring Market Top Security Monitoring Companies RMR Gross Rank 12/31/13 Avg. RMR Revenue 2013 2013 Company Location ($ mm) Subscribers per Sub FTEs ($ mm) 1 ADT Boca Raton, FL $253.4 6,428,266 $ 39.42 16,000 $3,378.4 2 Tyco Integrated Security Boca Raton, FL 63 500,000 125.00 10,000 3,891.0 3 Stanley Convergent Security Indianapolic, IN 54.2 550,000 98.55 8,300 1,260.0 4 Monitronics International Dallas, TX 42.8 1,046,155 40.91 1,100 451.0 5 Vivint Inc. Provo, UT 42.2 801,773 52.63 2,546 500.9 6 Protection 1 Remoeoville, Il 28.0 1,500,000 18.67 2,743 429.6 7 Slomins Inc. Hicksville, NY 17.4 302,358 57.55 670 314.1 8 Diebold Security Untiontown, OH 13.8 200,000 69.00 0 2,857.0 9 Vector Security Inc. Pittsburgh, PA 13.5 285,077 47.36 0 256.2 10 Guardian Alarm Company Warrendale, PA 11.5 278,736 41.26 929 158.3 11 ASG Security Beltsville, MD 8.8 218,361 40.30 1,090 132.6 12 Interface Security Systems Holdings Earth City, MO 8.4 103,692 81.01 842 126.7 13 Bay Alarm Company Pacheco, CA 7.8 119,622 65.21 687 112.0 14 Central Security Group Inc. Tulsa, OK 6.3 195,645 32.20 380 74.3 15 Protect America Inc. Austin, TX 6.1 158,854 38.40 389 70.2 16 Security Systems Inc. Cromwell, CT 5.7 150,329 37.92 196 60.0 17 Alarm Capital Alliance Newtown Square, PA 5.0 145,411 34.39 420 59.0 18 Guardian Alarm Company Sounthfield, MI 4.9 116,500 42.06 441 85.6 19 CPI Security Systems, Inc. Charlotte, NC 4.7 111,760 42.05 448 61.9 20 Kastle Systems Falls Chruch, VA 4.5 n/a n/a 0 74.0 Highly Competitive and Fragmented Security Monitoring Market 14

Business Strategy

Large Video Market Growth Opportunity According to Allied Market Research, the North American market for IP video surveillance and video surveillance-as-a-service (VSaaS) is forecast to expand dramatically, rising from $2.4 billion in 2013 to $18 billion by 2020 33% compound annual growth rate Winners in the market will be companies that provide integrated services According to BIS Research, the North American market for IP video surveillance and video surveillance-as-a-service (VSaaS) is also forecast to expand dramatically, rising from $4.56 billion in 2013 to $15.81 billion by 2020 19% compound annual growth rate Projecting greater demand for VSaaS 16

Strong National Account Growth Nationwide presence through 16 regional service centers Nationally distributed sales team Steady growth in RMR at historical investment levels with year-on year increases in monitoring and managed service revenues ~ 65% of total company RMR is from national account customers ($ in thousands) Ending National Account RMR $8,000 $7,633 $7,000 CAGR: 72% $6,000 $5,000 $4,000 $4,341 $4,817 $3,000 $2,000 $1,000 $1,143 $2,292 $0 2010 2011 2012 2013 2Q14* * Includes $2.9M of national account contracted backlog. National account sales initiatives are driving consistent and substantial RMR growth 17

National Channel Partnerships Driving Growth Cisco Managed Service Channel Partner ( MSCP ) Verizon Vertical Solutions Partner ( VSP ) One of less than 100 certified Cisco MSCPs worldwide Work with Cisco s direct sales team and 20,000+ value added resellers ( VARs ) to market and sell managed services Cisco and its VARs are able to resell the Company s managed services when upgrading routers As the VARs act as an external sales force, this partnership will expand the Company s reputation and customer base into new markets Cisco has dedicated an entire account team to promote this program Compliments the Company s sales team with over 2,000 Verizon sales representatives in a joint effort to expand customer base Preferred pricing agreement to purchase 4G LTE lines for exclusive use in providing managed broadband and other bundled services Gives competitive advantage in delivering higher speed broadband services to customers Provides additional sales channel at minimal incremental cost 18

Financial Overview

Financial Overview Total Revenue ($ in millions) ($ in millions) CAGR: 10% RMR CAGR: 14% $110.4 $126.7 $109.6 $7.8 $8.4 $7.4 $87.4 $5.8 $67.5 $67.3 $3.9 $4.5 2009 2010 2011 2012 2013 2014 LQA ($ in millions) New RMR 2009 2010 2011 2012 2013 2014 LQA* * Includes $0.9M of sold Residential RMR. ($ in millions) RMR with Backlog $1.8 $1.8 $10.3 $0.7 $1.1 $1.2 $1.5 $3.9 $4.5 $5.8 $7.8 $8.4 2009 2010 2011 2012 2013 P 2014 2009 2010 2011 2012 2013 2014 LQA* * Includes $2.9M of contracted backlog. 20

Summary of Key Company Attributes Leader In Bundled Physical Security and Secured Network Services Operating Model Creates Stickier Customers High ARPU Customers with Low Creation Costs Established Blue Chip Customer Base Significant Contracted Backlog and Pipeline Strong Financial Profile Experienced Management Team 21