ADJ Fire and Security are providers of Intruder Alarm Systems, CCTV and Fire Safety Systems. The Fire products are compliant with British Standards, such as BS5839-1:2013. ADJ also offers services like integration with fire, access control to release doors in the case of a fire, gas suppression systems, paging systems.

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 organisation representing aerospace, defence, 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 programme 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. ADT is the UK’s leading provider of electronic fire and security solutions. With a 6,000 strong team, we can combine nationwide resources with local presence.

Aduna is a landmark venture between some of the world's leading telecom operators and Ericsson, dedicated to enabling developers worldwide to accelerate innovation by leveraging networks to their full potential via common network Application Programming Interfaces (APIs). Its venture partners include AT&T, Bharti Airtel, Deutsche Telekom, e&, KDDI, Orange, Reliance Jio, Singtel, Telefonica, Telstra, T-Mobile, Verizon and Vodafone.

Advance Fire is one of the leading fire protection companies in Yorkshire. With over 30 years of experience in Fire Detection, Prevention and Security, the company designs, installs, commissions, and maintains all types of fire alarm systems, emergency lighting, smoke vent systems, and security products etc. Advance Fire also provides fire talks and on site staff training to all businesses.

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 is part of the safety sector of FTSE 100 company Halma plc. This global group of life-saving technology companies has a clear purpose to grow a safer, cleaner, healthier future for everyone, every day.

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 specialises in Fire alarms-conventional, analogue 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.