Accellence Technologies GmbH is an independent software development company based in Hanover, Germany. They provide information technology and telecommunications solutions, specialising in video security and SCADA/process automation. They aim for the highest attainable standard of efficiency, reliability and performance in the design and realisation of the software solutions, thereby achieving maximum benefit for their valued clients.

Access Specialties International is a leader in access control systems, automation systems and security management. ASI develops state-of-the-art technology in total access control systems for large corporations to small businesses. ASI integrates, installs, maintains and updates the complete secure access control solution for its customers. ASI manufactures line of access control systems, controllers, input/output devices.

ACRE was formed in 2012 by industry veteran Joe Grillo as a platform to consolidate acquisitions in the electronic security industry. Prior to ComNet, ACRE acquired the Schlage SMS business from Ingersoll Rand in 2012, followed by the 2013 acquisition of Mercury Security, the 2015 purchase of the Security Products Division of Siemens AG and the acquisition of Dublin-based ACT in November.

ACT Meters Ltd is a mail order supplier of specialist test equipment and alarm troubleshooting products. ACT Meters Ltd has recently transformed into a Group, with separate companies ACT Meters UK and ACT Meters International being created to focus on sales. ACT Meters' products are available either direct from ACT or through their worldwide network of distributors, who include the Farnell PLC Group and ADI Global.

ActEyes Technology Inc. specialises in network video technologies. The head office is located in Redmond, WA, USA. ActEyes is comprised of IT professionals with many years of experience in IT consulting. ActEyes Software Development Kits (SDK) for IP surveillance products are the result of years of research. ActEyes provides video surveillance products from network cameras to video server / transcoder modules.

ACTi Corporation is an end-to-end IP video surveillance solution provider, covering all the way from security to business management solutions. The core value of ACTi is to deliver the surveillance solutions through in-house developed technologies applied to its whole product line. The products include IP cameras, video management software and video analytics that are seamlessly unified.

Action Bullet is a specialists in fabricating bullet resistant windows and doors, blast resistant windows and doors, and also non-bullet resistant storefronts and architectural metal systems. The company custom builds its storefront systems right on the premises to meet required specifications. Its systems are designed to be installed in new or retrofit construction, for use in court houses, military bases and U.S. Diplomatic Mission Buildings.

Active Vision is dedicated to providing leading-edge Digital Video Technology for the "Remote Business Management" and surveillance market through dealers, installers and system integrators. They are distributors and system integrators to professionals in this industry.

ActivEye Technology automates several key components of the video surveillance process, helping to eliminate both cost and human error while significantly elevating the level of security offered. The company's solution maximises human resources, enhances security and increases customer satisfaction with CCTV installations.

ActMobile is a technology licensing company delivering best-in-class privacy solutions for consumers and business partners alike. Built by a team of experts with 100+ years of combined experience, their privacy solutions have been used by over 75 Million users around the globe.

Acuity-vct, an American technology company, has developed the Video Capture System (VCS). The VCS is a family of highly scalable networked based video surveillance systems that allows clients to use their existing systems. The company caters to industries such as museum, manufacturing, educational institutions, Government, healthcare, etc. Acuity-vct has also deployed an analytics solution called the Camera Based Motion Alarming System (CBMAS).

One of the first companies to embrace the concept of video over IP, AD's interests now include CCTV systems for aircraft, transport, smoke detection, together with camera technology and digital video recorders and multiplexers.

Adetel SIE is a global leader in providing electronic solutions for embedded deployments. Available as individual equipment or complete systems for new designs or upgrade programs, their products are designed for the stringent requirements of the embedded world. This includes video surveillance systems, communication systems, public address, passenger information systems and if needed, custom made system to meet specific customer requirements.

Adirondack Direct is a one-stop shop for quality commercial products, services, and support. They provide services such as surveillance & 24/7 monitoring, digital signage, audio systems, music licensing, installation products & services, custom flooring and many more.

Headquartered in Nashville, ADS Security currently serves over 70,000 businesses, industrial facilities and residences throughout the southeastern United States. ADS provides a full range of burglar and fire alarms, as well as video surveillance, access control, wireless monitoring, and automation systems. ADS Security is the only security installation company to operate a UL-listed, CSAA Five Diamond Monitoring Center in Middle Tennessee.

Advanced Technology Video has been a market leader in CCTV security segment since 1983. The company offers cameras, IP video solutions, digital video recorders, CCTV public view monitors, PTZ cameras and accessories.

Advent Systems is a leading systems integrator that goes beyond the ordinary to ensure that each client receives individual attention and the best technical solution possible. It offers clients a full range of products and services to meet their specific needs, including security systems, closed circuit television, network cabling, audio/visual, sound masking, sound reinforcement and paging systems.