Astoria Fire and Security carry out installations and provide maintenance services in the Electrical, Fire Alarm and CCTV industry to commercial, industrial and domestic properties throughout London and the South East including; schools, offices, factories and retail enterprises.

Astro Communications Ltd. is a IP network security service provider that includes intrusion detection, intrusion protection, network access control etc. Located in Kent, the company's engineers have extensive knowledge of all aspects of network infrastructure and this is a base requirement for a successful NAC deployment.

Atalian Servest believes that to make real and positive change, inclusion must be at the centre of everything they do. Atalian Servest is the one solution for all the facilities needs. From cleaning to catering, security to technical services, Atalian Servest can deliver bespoke single, bundled or integrated services.

ATEC is a multi-disciplinary security company that embraces innovation to provide deep integration and efficiency across logical and physical security domains. ATEC specializes in video surveillance, access control (Personnel and Vehicular), intruder detection, biometric technologies, voice communication, ANPR, intruder detection and fire systems.

ATG Access is Europe's largest manufacturer of security bollards and vehicle barrier systems, currently exporting to over 40 countries. ATG Access has become a global brand offering a wide variety of access control products and solutions.

Atlas Alarms Ltd. is an independent electronic security company, providing installation and maintenance and repair for Intruder, Access, CCTV, Fire and much more, across the North West of England. The company mainly offers commercial and residential electronic security. Atlas Alarms is a NSI, Nacoss Gold, Constructionline and CHAS Health and Safety accredited company.

Atlas Fire & Security Ltd. is one of the largest independent installers of Intruder Alarm, Fire Alarm, CCTV and Access Control systems in Merseyside. By having a team of highly experienced technicians ensures that the company provides a consistently high quality installation, maintenance and 24 hour repair service to its customers. Atlas Fire & Security Ltd. offer services to both domestic as well as to commercial clients.

Audible & Visual Security Ltd. offers installation services into every type of buildings that includes small and very large, ultra-modern homes. Based in Solihull, the company aims to supply and install quality security systems into every type of business such as jewellery shops, off-licences, warehouses, office blocks, garages, car showrooms and large industrial units. Audible & Visual Security Ltd. desire to meet the need of its customers.

UK based, Audiotel International operates from a modern, fully equipped and secure headquarters near Northampton. The company designs, develops and manufactures audio surveillance, technical counter surveillance and counter IED equipments.

Since 1998, Aurora Computer Services (Aurora) has been a leading specialist developer of Facial Recognition systems. In 2014 the company’s latest Facial Recognition algorithm, developed completely in house, was officially recognized as the most accurate in the world by Massachusetts University’s Labelled Faces in The Wild benchmark test.

Austin Hughes is a design and manufacturing company that offers a broad range of 19 inch rack mounted active products for control and monitoring of equipment within large or small data centres.

Authenticard Limited offers system manufacturers a wider choice of reader, card and tag with many different technologies with their own custom card encoding formats and bespoke key management to protect their installed base. OEM reader designs and customized cards and tags allow system manufacturers to differentiate themselves from their competitors visually as well as technically.

Auto Time Systems offer effective time and attendance management and access control systems for businesses of all industries and capacities. Schools, warehousing and distribution units, hospitals, police stations and construction companies are a few of the many industries to reap the benefits of Auto Time Systems' low-cost systems.

For over four decades Autoclock Systems have supplied and supported a comprehensive range of clock systems, guard tour systems, time and attendance systems, access control systems and associated accessories. The client base includes areas of government, industry and commerce including many blue chip organizations.

Autogate Supplies provide a selection of electric gates and CCTV systems. The company can supply automation kits, remote controls, safety sensors, intercoms and spare parts. Autogate Supplies offers access control, intercoms and cctv systems.

Autogate Systems Ltd. is a specialist in all types of automatic access, traffic management and security solutions. With a combined 50 years experience in the manufacture and installation of automated gates and barriers.

Autoguard Alarms Ltd. is in designing, installing and maintaining security installations for Intruder Alarms, CCTV and Access Control. Autoguard Alarms have successfully installed security systems for home and commercial protection across the UK. The company run with a team of highly skilled Installation and Service Engineers who offer a professional, yet personal service. The company's service meet or exceed the NSI regulations.

Turnstiles, sliding gates, traffic barriers and automatic barriers from Automate Systems. A leading supplier of automated access control solutions including turnstiles, sliding gates and barriers.

Automatic Alarms Ltd. offers installation and maintenance service of Fire Alarm Systems and Emergency Lighting Systems. The company provides approved systems to shops, offices, hotels, restaurants, care homes, industrial units, schools, colleges and universities, multi-occupied apartment buildings, NHS Trusts and breweries. Automatic Alarms objective is total customer satisfaction.

Based in Chesterfield, Automatic Security Installations Ltd. is a specialist in installing electronic security systems including CCTV systems, access control, intruder alarms systems, panic/staff alert systems, and nurse call systems. The company is NACOSS gold accredited assuring high quality services. Automatic Security Installations Ltd. can fulfill both domestic as well as to commercial needs.

Automatic Security Services Ltd. mainly supply and install security systems such as home burglar alarms, access control, intruder detection, CCTV, key response, physical protection, and remote monitoring etc. Located in Newcastle, the company meets all the NSI standards. Automatic Security Services offers domestic, commercial and public security.

Automatic Systems is a world leader in the automation of secure entrance control. The company designs and manufactures pedestrian (turnstiles, security doors) vehicle (barriers, road blockers, bollards) and passenger access systems (immigration, metro and railway gates).

AVA Fire & Security Ltd. are an electronic security installation and maintenance expert specializing in CCTV systems for business. The company offer installation services of CCTV, fire alarms, smoke alarms, burglar alarms, security barriers, access control, and fire extinguishers. AVA Fire & Security clients includes local health boards, schools, and commercial organizations throughout Newport, South Wales and the UK.

AVANZA is a provider of high-end IT and security solutions. The company’s security services include access controls, CCTVs, biometrics, intruder, fire detection technology and Fastlane solutions. AVANZA functions in retail, commercial, residential, educational and government sectors.