The Association of Remotely Piloted Aircraft Systems is the non-profit Trade Association that represents the commercial small unmanned aircraft operating industry to government departments and international bodies.

The Association of Security Consultants is the professional organization for independent security consultants. ASC promotes networking between member consultants, end-users, the security industry and government, through its networking services, business clubs and annual international conference, CONSEC.

The Association of University Chief Security Officers is the organization for security professionals working in higher and further education around the world. The association provides advice, resources, training and events for its members to aid best practice in security management within the sector.

Assure Alarms Ltd. cover all aspects of security including Intruder Alarms, Fire Alarms, Fire Extinguishers, CCTV and Door Access Systems, with a team of very highly trained engineers providing a 24 hour service. Located in East Kilbride, the company's installation service is designed to meet the exact requirements of the client. Assure Alarms clients portfolio range from major insurance companies, engineering consultants and architects.

Assured curates and executes cyber insurance programs that assure corporates and institutions that their insurance will deliver when they need it most. Without the distractions of other commercial insurance lines, Assured channels all of its effort and passion into cyber.

Assured Clarity is a global consultancy, specializing in Risk Management and Data Privacy, through Education, Awareness and Training, throughout an organization. They recognize the ‘human factor’ as well as the need for advanced technology to protect and defend from a physical and or, cyber attack.

Assured Data Protection delivers tailored services based on the Rubrik cloud data management platform to meet individual client needs in an affordable and achievable manner. They provide Data Protection, Disaster Recovery, Backup, BaaS, DraaS, Archival, AaaS, Cloud Data Management and much more.

Assured Fire & Security is an independent, family-run business that has over 30 years of experience in the electronic fire and security industry.

Astec Systems Limited is a UK-based security systems company with international capabilities and a reputation for the highest standards of service, unrivaled quality and excellent reliability. They specialize in the design, installation, service and maintenance of high technology security systems, from single locations to multi-site, fully integrated multi-jurisdictional installations.

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.

Astroflame stock or manufacture a wide range of fireproofing and fire protection system items such as - fire seals, letterbox systems, smoke seals, pipe collars, pipe sleeves, pipe wraps, fire grilles, intumescent mastic, downlighter covers, canopies, luminaire covers. Astroflame now supplies intumescent paints and coatings.

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.

Audax is a company at the forefront of mobile, digital evidence gathering technology which focuses on the delivery and development of mobile digital evidence gathering products and services. Audax works in partnership with the Police, Emergency Services and Security Industry to provide plug and play mobile solutions that meet “evidence secure” technology requirements.

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.

Audio Analytic produces software which automatically recognises sounds by means of computer analysis. The CoreLogger sound recognition software detects a wide variety of sounds and depending on the type of Sound Packs installed, the sounds will match, even with high levels of ambient noise.

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.

At Audra the are striving to become the peoples’ choice for Internet connectivity and security. Two-in-one routers and firewall devices make managing Internet security and usage for homes, as well as small and medium businesses, simpler and more accessible than ever.