ADP Security Systems provides electronic systems as well as manned guarding in Hampshire, Sussex, Surrey, Dorset and Berkshire. The company's forté is in tailoring a mix of flexible security elements, covering static manned guarding, mobile, electronic/CCTV and physical security.

ADS Group is the UK trade organization representing aerospace, defense, security and space sectors. ADS is focused on representing ambitions and concerns of these industries in the UK and overseas to key stakeholders, government, and the media. A dedicated team of events specialists co-ordinate & manage a comprehensive events program encompassing everything from large international trade shows through to table top events & networking lunches.

ADS Digital deliver comprehensive digital aerial services for customers in London and the surrounding areas. Their services include the expert installation, full maintenance, and support for a wide range of access control and CCTV systems, using the most effective and reliable equipment.

ADT Fire & Security offers fire alarm monitoring, fire detection/evacuation systems as well as gaseous and fixed extinguishing systems.

Advance Security Solutions helps secure premises by installing bespoke security systems, which range from premium CCTV systems, intruder alarms and long lasting electric gates. Advance Security Solutions offers security solutions for domestic as well as commercial clients.

Advance Vision Group (AVG), incorporating Wychwood Security Services and Feel Secure Services, is a Oxfordshire based security company. As an NSI Gold installer for intruder alarms and a quality assured ISO 9001 company, it operates to the latest British and European Standards EN 50131-1. AVG provides designing, installation and maintenance of security systems like intruder alarms, CCTV, access control, gates, and fire protection systems.

Advanced Connections are providers of access control, intruder detection, video surveillance and integrated security solutions for the commercial and educational markets. Advanced Connections Ltd are also specialists in supplying audio visual/data solutions to the education sector, with 10 years experience within this niche market place.

Advanced Detection Systems Ltd specializes in Fire alarms-conventional, analog addressable and radio, fire alarm installations throughout Greater Manchester, CCTV, access control systems including entry phone systems, personal staff alarms, emergency lighting and nurse call.

Formerly AES Distribution (ni). Manufacturers of wireless DECT audio and wireless video intercom systems, GSM intercoms and wirefree intercom systems for gate automation.

Advanced Integration is a provider of Smart home automation and BMS for residential, marine, hotel and commercial projects. Audio&Video, BMS, Home Automation, Yacht Automation, Hotels Automation, Technology, and construction are also part of portfolio.

Advanced Overwatch are one of Northern Ireland's leading CCTV System, Burglar Alarm and Security System installation companies offering the latest in security technology, installed by expert engineers.

Advanced Security Alarm Protection Ltd., provide a full design, installation and maintenance service for electronic security systems including Access Control, C.C.T.V. and Intruder Alarm systems. All systems are individually designed to ensure reliability for a discerning public and private sector market.

Advanced Security Systems UK Ltd is a company which, by understanding the principles of threat and risk assessment, combined with the desire to deliver the best quality installations, have achieved a reputation for providing cost effective, high quality security solutions. Technical Excellence, Integrity and Enthusiasm’

Advanced Technical Services manufacture and supply power supplies, relay modules and interlocking modules to the access control, fire and cctv markets.

AVS provide a full range of products ranging from small household security systems through to more complex networked, digital, IP and wireless systems for large companies and government institutions.