SRC, Inc., a not-for-profit research and development company, combines information, science, technology and ingenuity to solve impossible problems in the areas of defence, environment and intelligence. Across their family of companies, they apply bright minds, fresh thinking and relentless determination to deliver innovative products and services that are redefining possible for the challenges faced by America and its Allies.

SSD Systems offers commercial and residential security services. It is one of the largest security companies in North America, serving commercial and residential clients across the continent since 1968. The company's commercial security services include, access control, audio/video, CCTV, fire life safety, line security and systems integration.

Stanley Black & Decker is a diversified global provider of hand tools, power tools and related accessories, mechanical access and electronic security solutions, healthcare solutions, engineered fastening systems.

A part of Stanley Black & Decker, STANLEY Convergent Security Solutions, Inc. is the second largest electronic security company based on total revenue and one of the largest system integrators in the United States. STANLEY CSS designs, installs, monitors and services security systems for industrial, government, commercial, residential and national account customers.

STANLEY Healthcare is an operating division of Stanley Black & Decker. As a recognised leader in healthcare & senior living markets, STANLEY Healthcare strives to ensure safety & security, improve patient & resident experiences, optimise workflow, increase operational efficiency. STANLEY Healthcare can deliver facility security solutions like access control, biometrics, video surveillance, alarm systems, locks, visitor management systems, etc.

Starlight Digital Media is a full-service residential and commercial custom electronics design and integration company. The company offers advanced commercial control systems and home automation systems. Starlight also offers alarm systems, video surveillance, entry systems, access control, door locks, etc.

Starr Computer Solutions provides various security services, such as alarm system monitoring, alarm system installation, alarm system installation and camera system installation.

Statewide Security is the premier provider of Homeland Security Consulting and Design in the Pacific Northwest. Services include outdoor security, access control, and gate automation. Statewide Security servers a number of government agencies, fortune 100 companies, and hundreds of other commercial and residential clients.

The Sterling & Francine Clark Art Institute, usually referred to simply as "The Clark", is an art museum with a large and varied collection located in Williamstown, Massachusetts, United States.

Stokoe Communications offer Turnkey Solutions for any Communication Application. Its comprehensive product line includes the latest in cutting-edge Digital CCTV, Structured Cabling, Process Monitoring, Access Control , Commercial Paging Systems, A/V and Presentation Products. Stokoe supplies and installs products and services for hospitals, child care centres, police, government, schools, universities, airports, corporations and more.

Stone Lock Global, Inc. is a supplier of high-quality biometric access control products. The products are suitable for a broad range of access control and related applications. Stone Lock Global serves a global market through professional integrators and licensed partnerships. The company's Stone Lock Pro facial recognition device offers innovative way to provide secure access.

Strauss Security Solutions was established in 1927 by E.O. Strauss with one simple philosophy in mind.

Stronghold Lock & Security is a locksmith/security integration company in the New Hampshire region helping businesses and individuals to better protect themselves.

Stronghold Lock & Security LLC helps people, organisations, & small businesses looking for a locksmith in Portsmouth NH and Southern NH who care about their security and struggle with issues of theft or other crimes. Stronghold Lock & Security offers access control, security camera, & lock sales & installations.

Structure Works is a security company with expertise on all “integrated security” solutions. The company provides various services, such as full security integration, fire alarm services, alarm monitoring, CCTV systems, IP video, perimeter protection and wireless video and access.

Structured Technologies Group is a manufacturer's representative representing various clients, such as emcor, ZKAccess, MaxCell, Sumitomo Electric and ZERO Connect, among others.

STS360 is a market leader in integrated security services with a culture of helping customers plan and design projects by understanding their ideas, budgets, and long-term security plans. Servicing markets such as intrusion, monitoring, access control, perimeter detection, video analytics, as well as many others, STS360 has been providing impeccable customer service, security solutions and partners for almost 10 years.

Stylus Audio & Video specialises in meeting the audio, video, lighting and security needs of a diverse clientele. From churches and schools to festivals and events, the company takes pride in successfully completing a wide range of projects.

SUMMIT, established in 2006, is a brand serving requirments of low voltage system installers and electrical contractors. The SUMMIT line of life safety products includes complete range of easily installed systems and peripheral devices to meet the requirements of any multi-unit residential, commercial, institutional or industrial application. SUMMIT is part of THE MIRCOM GROUP, an independent fire alarm manufacturer in North America.

Sunrize Communications LLC provides various IP related services, such as structured cabling, voice, data, optical fiber and all backbone feeds, building infrastructures for data and call centers, as well as installing video & security systems, IP cameras, wireless networks.

Supra is a provider of key management systems. Based in the USA, the company offers access control, key access, storage devices, ATM solution, and wireless security solutions for real estate, banks, property management, fire departments, automotive, and industrial sectors. Supra is part of UTC Building & Industrial Systems, a unit of United Technologies Corp.

Eid Passport has changed its name to SureID, Inc. The company is a market leader in high-assurance identity management solutions in the United States. SureID integrates leading-edge products and services into solutions that combine identity authentication, background screening, credentialing, and identity management. Founded in November 2001, SureID is headquartered in Hillsboro, Ore., with offices in Minot, N.D. and Alexandria,

Surety Security is Louisiana’s premiere security and alarm company. Surety Security is a full service provider of electronic security detection/deterrence equipment.

SSI designs and installs video and access control for basic systems. Based in California, the company provides clients with comprehensive system solutions, taking projects from the inception and planning phases all the way through their execution. SSI has extensive experience with legacy systems and the newest IP / network solutions including high definition, megapixel video and IP access control.

SW24 Security is a privately-held, full-service provider of electronic and physical security services. The company operates a state-of-the-art national electronic monitoring and operations facility called the Fusion Centre focused on video services and video verification of alarms. SW24 Security also offers other security services like video analytics & VMS, access control systems, fire & life safety systems, guards, intrusion systems and more.

Synercard Corporation is now a part of HID Globals. Synercard has been designing and distributing robust digital identity and photo card management solutions that enable organizations of any size anywhere to create, manage and verify an individual's identity.

Syntel provides end-to-end cyber security implementation, customisation and integration services for the SureView suite of products. As a proven, reliable partner for enterprise clients, Syntel delivers the defence-grade security that today’s digital enterprises demand.

T&R Alarm Systems, Inc. have skilled personnel and all the necessary equipment to handle even the most challenging of installations. With their incomparably affordable and efficient services, T&R Alarm Systems, Inc. sets the bar quite high. Architects, builders, general contractors, and governmental agencies are typical clients of T&R Alarm Systems, relying on them for their electrical requirements and the expertise that they always provide.