Interface Security Systems, LLC (“Interface” or the “Company”) today announced the completion of a $230 million Senior Secured Notes offering (the “Notes”) and a new $45 million Revolving Credit Facility (the “Credit Facility”) from Capital One Bank’s (“Capital One”) Security and Defense team. Interface is a portfolio company of SunTx Capital Partners (together with its affiliates, “SunTx”) and is the leading national provider of Internet Protocol (“IP”) managed physical security and secured managed network services to primarily large, commercial multi-site customers. The Company provides the most comprehensive suite of Internet Protocol technology-enabled bundled business security solutions in the market.

Proceeds of the Notes offering were used in part to repay the Company’s existing debt and along with the $45 million Revolving Credit Facility can be used for funding the future growth of the business.

Founder and CEO Mike Shaw attributes Interface’s successful introduction into the institutional investor market to the Company’s exceptional performance since combining physical security with secured network services in a fully integrated IP based system. “With the support of SunTx, Interface was one of the first to embrace the convergence of physical and logical security in 2007, having developed the most comprehensive suite of technology enabled managed security solutions in the market. Our physical security solutions include alarm/event monitoring, interactive video surveillance, managed access control and fire/life safety systems. Our secured network services include secure managed broadband (“SMB”), payment card industry (“PCI”) compliance, managed digital voice and other ancillary services.”

Mr. Shaw continued, “What differentiates us in the market is an ability to deliver all our security solutions in a fully integrated and managed IP based bundle. The combination of physical security and secure network solutions onto a single IP based platform creates a compelling value proposition for our customers.”

“The strong execution of the Notes offering reflects the tremendous confidence of the investment community in Interface’s value proposition. Today’s announcement marks an important milestone for all parties involved, and Interface’s successful introduction to the institutional investor base. SunTx has been an investor in and partner of ISS since 2001 and we look forward to the Company’s continued success,” said Craig Jennings, Partner and Chief Financial Officer of SunTx.

Imperial Capital, LLC (“Imperial”) advised the Company and acted as sole book runner for the Notes offering. Imperial also assisted the Company in securing the new Credit Facility with Capital One. John E. Mack III, Director and Co-Head of Investment Banking at Imperial commented, “We were thrilled to lead the execution of a very well-received Notes offering. Interface, as the leader in a break-out new category for business services at the convergence of physical and network security, is positioned for extraordinary success.”

Bill Polk, Managing Director of Security, Defense, & Technology, Commercial & Specialty Finance, Capital One Bank, noted, “Capital One Bank is committed to providing specialized services to companies in the security and defense industry. We recognized and supported the strategic value of Interface's acquisition of Westec Intelligent Video Surveillance, and have since witnessed the extraordinary growth in the company's break-out IP based physical and network security service offerings. The $45 million Credit Facility will provide growth capital for Mike Shaw and his team at Interface to continue to innovate and grow as leaders in their industry.”

About Interface Security Systems, LLC

Interface Security Systems, LLC is a cloud based managed services company headquartered in St. Louis, Missouri. Interface manages a broad range of secure, IP-based security solutions for retail, commercial, small business and residential customers as well as remote interactive video surveillance. The Company operates two UL Approved 5-Diamond CSAA Certified Secure Operations Center and a nationwide service delivery infrastructure. Interface is a portfolio company of SunTx Capital Partners. For more information on Interface, visit www.interfacesystems.com.

About SunTx Capital Partners

SunTx Capital Partners, LP, is a Dallas-based private equity firm that invests in middle market manufacturing, distribution and service companies. SunTx specializes in supporting talented management teams in industries where SunTx can apply is operational experience and financial expertise to build leading middle-market companies with operations typically in the Sun Belt region of the United States. SunTx was founded in 2001 and currently has over $600 million of assets under management. The capital committed by SunTx comes from the principals of SunTx as well as from institutional investors, including leading university endowments and corporate and public pension funds. More information about SunTx can be found at www.suntx.com.

About Imperial Capital, LLC

Imperial Capital, founded in 1997, is a full-service investment banking firm with offices in Los Angeles, New York, San Francisco, Minneapolis, Boston, Chicago & McLean. The firm currently employs over 230 professionals and offers a wide range of proprietary products and services to institutional investors, middle market companies and private equity firms. More information about Imperial Capital can be found at www.imperialcapital.com.