A.I. Tech is a spin-off company of the University of Salerno specialised in design and development of intelligent audio and video surveillance systems. It was founded on the scientific and technological expertise of the research group of Intelligent Machines for the Recognition of Video, Images and Audio (MIVIA Lab), which has been active for over 20 years in international research.

a.s.t. S.r.l. has been active since 1973 in the domestic and international market of process automation system, fire & gas detection, firefighting systems, heat tracing systems for energy production, petrolchemical plants and transports. Based in Italy, the company designs and develops integrated security systems.

Founded in 2007, A.ST.I.M. S.r.l designs, develops and manages systems and services through high-tech solutions. The company's activities are structured through four business unit: Industry, Naval, Security and Defense. A.ST.I.M. S.r.l offers security and surveillance for residential, industrial, port and airport areas. The company provides thermal imaging solutions for surveillance of residential areas, banks, harbour areas and private marinas.

A1 Data Comms is a data installations company specialising in providing custom data cabling solutions for its client base. The services of the company include IP-CCTV, CCTV, data centre architecture, access control, security, IP video. A1 Data Comms is collects traffic data accurately for data analysis.

A1 Security Protection are a major commercial security solutions provider, based in West Sussex, UK and provide high quality, innovative security solutions for business and organisations across the Southeast. Their services are tailored around clients' specific needs and designed to ensure buildings and premises will be safe and secure from unwanted intruders. They supply, install and maintain a huge choice of security systems.

Aaronia AG is a manufacturing company of high end RF & MW equipment based in Germany. Aaronia was founded in 2003 and mainly produces Spectrum Analysers, Generators, Antennas, and Shielding Materials.

Aasset Security designs and distributes, to installers and integrators, a range of products and security systems built around four main ranges: video surveillance, access control, security supervision, intrusion. Based in the Paris region, Aasset Security has joined the Dutch TKH Group, reinforcing its leading position in the French market of value-added distributors of security solutions.

Abbey Grey Security Group is one of the leading surveillance, fraud investigation & specialist security companies. The company provides secure support services, risk consultancy, training & integrated solutions in a range of environments. With strength of staff in many countries, Abbey Grey Security Group provides clients with single point of reference for provision of all security, risk management, specialised training and logistic services.

ABCA Systems specialises into installation, maintenance and designing of security systems such as CCTV, intruder alarms, door access, fire alarms, public address systems etc. The company provide a myriad of products, systems and services to large public sector organisations and private residential home owners alike. ABCA Systems believe close working relationships are the key to success and satisfaction.

Abesco Fire Ltd is a designer and manufacturer of Passive Fire Protection Products. It produces a range of products suited to a wide variety of applications and hold International testing and certification.

Abiom is an importer of the most advanced products from reputable manufacturers. We also develop and assemble. The company works on behalf of industry, police, ambulance, security, entertainment and maritime industries.

ABSL is a world leader in the research, design, development and delivery of power solutions for customers who cannot afford failure. The company's worldwide customer base spans the defence industry comprising soldier modernization programmes, armoured vehicle power and unmanned or robotic systems.

ABUS provides a large product range of innovative security solutions in the areas of security at home, mobile security and commercial security. The company's security solutions include, alarm systems, door security, fire protection, locking systems, video surveillance and padlocks.

ABUS Pfaffenhain GmbH is certified in accordance with VdS and DIN ISO 9001, and is the leading specialist when it comes to planning and manufacturing high-quality locking systems within the ABUS group. Here, made-to-measure locking systems - from central locking systems to general master key systems - are planned and manufactured for commercial and private users, based on their needs.

Abzorb is a national company with a strong presence in the North of England. For over a decade the company has been providing telecommunications to businesses and individuals from mobiles, to fixed lines to full network installations. Abzorb has 6 core areas, such as mobiles, fixed lines, networks & phone systems, WAN, LAN and vehicle tracking.

AC Leigh is one of the UK's leading Architectural Ironmongers. AC Leigh supply ironmongery to projects UK wide from branches across East Anglia, from designer door handles and antique brass window furniture, to heavy duty high security locks and electronic access

ACA Security specialises in all types of security solutions such as intruder alarms, fire alarms, CCTV, door entry systems, access control systems, automated gates and integrated systems for domestic, commercial and public sector properties throughout West & South West London, Middlesex and Surrey.

Academy Halogen offers programmes for both basic and advanced professionals that seek to enhance their skills, competencies, experiences and qualifications in the security and risk management space. The training programmes offered by the institute includes Enterprise Risk Management, Strategic Insights into Cyber Risk, Embedding Risk Management and Risk Reporting.

Acal is a European leader in advanced technology solutions. The Electronics Division designs, manufactures and distributes specialist electronic, photonic and medical products for the industrial and healthcare sectors. The Imaging and Electro-Optics business unit provides specialist support to military and security OEMs operating in vertical sectors such as homeland security, border protection and criticalasset surveillance, etc.

Acam Technology Ltd. is a trade supplier of CCTV and access control equipments.ACAM have an extensive range of high specification products suitable for all applications together with exclusive UK distribution for several respected overseas professional equipment manufacturers.

ACC Security is dedicated to the design, installation, service and maintenance of physical and electronic commercial security systems. The company offers CCTV, access control, intruder alarm, fire safety systems, intercom systems, home security etc. services. ACC Security is a partner of Avigilon.

With nearly two decades of highly rated service, AOS is one of the leading security companies in the UK. AOS recently achieved a score of 163 following the Security Industry Authority ACS audit, which places AOS in the top 1% of companies in the Approved Contractor Scheme for the second year running.

Accenture is one of the world’s leading organisations providing management consulting, technology and outsourcing services. The company helps clients assess their security and risk tolerance, determine the right level of security for their cloud ambitions, and design a comprehensive strategy and architecture that supports their business goals.

Access Cards and Readers LLP supplies a range of access cards, fobs, readers and keypads for the facilities management, and access control sectors. Available for purchase both online and by phone. Set up by Rob Ansell in 2010 Access Cards and Readers' main objective is to manufacture and distribute quality access control products to the market at a fast and efficient rate.

Access Control China Co.,Ltd. is a China based company which was launched in June 2006 with its main focus on worldwide business of security products. Their history dates back to 1997 and since then their international OEM service business was operating by cooperating with many distributing channels all across the world.