Based in Central Cardiff, Apollo Alarms is an expert in providing quality installation services of products like intruder alarms, perimeter alarms, CCTV, access control, barriers and bollards, security lighting, fire alarms and automated gates etc. The company's client ranges from small domestic to government agencies & multinational companies. Apollo Alarms is equipped with SSAIB (ukas) list of approved installers.

Applied Risk is a globally renowned company in the field of Industrial Control Systems Security. They help businesses to protect assets and reduce security risk, providing organisations with the services and solutions they need to transform the way they procure, build, integrate and manage their critical infrastructures. Services provided include Industrial Automation, Process Control Security, ICS Threat Intelligence & Situational Awareness.

Aprimatic offers a complete catalogue of automatic solutions for building opening and closing requirements. The company supplies high-tech solutions and wide range of products for automatic handling of swing and sliding gates, garage doors, traffic barriers, industrial automation, control unit, etc. In 2003, Aprimatic signed strategic, operational and financial partnership agreement with Urmet Group.

As one of the country’s growing independent electronic security providers, APS Protection Systems offers comprehensive range of security products to meet needs of domestic & commercial clients. Commercial security starts with a simple Intruder Alarm, CCTV, and Access Systems, and expands to incorporate all three disciplines which could interface to several locations all monitored and controlled from one control room or remote monitoring service.

Founded in 2003, Apstec has established itself as an innovator in the field of real-time mass people screening and threat detection technology. The company's Human Security Radar is the first fully automatic real-time mass people screening solution available in the market currently. HSR’s real-time, automatic threat recognition capabilities dramatically improve security levels while efficiently screening large numbers of people.

The Axiom range of Access Control Solutions has been promoted and supported in the UK since 1997. In September 2000 ARAS & RBH Security Group was set up to provide a strong team to support the UK market. During this time their commitment to providing innovative and cost effective security solutions has seen ARAS & RBH Security Group become market leaders in the Access Control field.

ARD has established for 25 years as a specialist in multi-application solutions scalable to facilities and sites of education and research, health, local authorities, businesses and administrations. The profession of ARD is to design, develop and assemble solutions integrating multiple communication devices (bar codes and smart labels, smart card contact and contactless, mobile phones) in a software platform control and management.

Arena International identify the pioneering case studies, innovative solutions and up-to-the-minute discussion topics that comprise programmes of wholly unbiased integrity. From the strategic to the technical, from the controversial to the challenging, from the practical to the inspirational, events are tailor-made to address those issues most critical to each industry they serve.

Argina Technics, manufactures products such as, fire detection, access control, gas detection, video surveillance and intrusion to mention a few.

ARJ Security Ltd. supply and install new systems including alarm panels, fire detection, access control, CCTV, burglar alarms etc. Located in Bristol, ARJ Security work with a whole range of both Domestic and Commercial customers from businesses, schools, charity organisations to large Government agencies. The company is equipped with a dedicated 24 hour engineer support facility to offer high-end service.

ART Security Solutions is a distributor of security products and is based in Oxfordshire, UK. They supply intruder alarms, CCTV systems, CCTV remote monitoring, access control systems etc. They also install security solutions and provide training on the maintenance of the same.

ASB-Security BV is a professional developer and supplier for microelectronics and ICT based safety and security solutions. The company is specialised in alarm processing, alarm transmission and ARC (Alarm Receiving Centre) automation. The portfolio includes devices, systems, software and services. During its 30 years of existence ASB achieved a leading position as an innovative supplier for high quality solutions for the security industry.

Ashford Security can supply and install a large range of security products to both domestic, commercial and public sector properties. This includes a simple wireless intruder alarm system, CCTV systems, fire alarms, access control, gates, locks, and central monitoring station. Being based in Ashford, the company is an approved installers by the S.S.A.I.B.

Aspex UK Ltd. is one of the UK’s leading architectural ironmongery suppliers and have recently added doorsets to the extensive range of products and services the company offers to specifiers and contractors. Aspex Security was established last year and has a growing reputation as an installer of integrated access control systems and automatic door operators and have already undertaken large projects with in excess of a 1000 doors.

ASSA develops locks and integrated security systems for doors. ASSA is Sweden’s leading supplier of locks and security systems for both professional customers and consumers. ASSA continuously monitors and drives the development of lock and security issues further. With comprehensive range of products and services, ASSA can set up security systems with appealing design that suit your specific needs.

ASSA ABLOY Entrance Systems is the world’s most complete supplier of entrance automation solutions. With a holistic approach to the flow of people, goods and vehicles, the company creates solutions with the best possible balance of cost, quality and lifetime performance. ASSA ABLOY Entrance Systems is a division within ASSA ABLOY, the global leader in door opening solutions.

ASSA ABLOY Security Doors is a UK division of ASSA ABLOY and the global leader in door opening solutions. ASSA ABLOY Security Doors comprises of Powershield steel doors and Safeguard high security timber doors, providing a single point of contact for well-known high performance security door brands. ASSA ABLOY UK is officially a UK Green Building Council member.

Associated Security Solutions Ltd is the UK’s industry leader for the supply, installation and service of the largest range of sophisticated security products that are available to fulfill the demands of today’s market. The client base benefits from the company's research and development expertise. The company has provided numerous security innovations for the Leisure and Hospitality, Financial, Pharmaceutical, Retail and Public sectors.

The Association of Security Consultants is the professional organisation 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.

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

Astrum's software and systems VISIT.net ASTRUM.access offers best-practice solutions for access management and visitor management.

Atea offers security solutions and services that reach all the way around. The company provides installation service to the building with video surveillance, access control, security, IT security in the data center and on the individual client. Based in Denmark, Atea's security solutions can be delivered as a service or cloud solution.