Established in 1979 and based in Northamptonshire UK, Radio Structures is a leading designer, manufacturer and supplier of radio masts, CCTV and security masts, towers, antennas, and accessories.

1GS Security Services provides a wide range of security services across the capital, the UK and around the world. With over 40 years' combined experience provides a range security services to a wide variety of clients in both the public and private sectors. 1GS Security Services include manned guarding, retail security, door supervision, corporate security, CCTV & alarm, among others.

Based in Doncaster, 1st Security provides SIA Approved provides security services to meet a wide range of facilities needs, from the management of reception services and night patrols to static gatehouse services, event stewards/door supervisors, store detectives, CCTV monitoring and mobile security patrols services.

The company is related to installing security devices such as access contol, intruder alarms and CCTV cameras for various premises.

4TRESS SERVICES LTD is a fully License bound, and insured private company, registered in the United Kingdom and a leader in providing high quality and effective service. The company believes in partnering with companies to enhance their security and cleaning needs. All their services are specifically designed around clients needs.

6S Global is a pioneer in the security, business and data intelligence industry. They provide enterprise network solution, data management, cyber security, data protection and much more.

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 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.

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.

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.

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.

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.

Access Key and Lock is one of the largest online lock suppliers in the U.K. Access Key & Lock are not just a web based company as they also have four retail shops located in Southampton, Bournemouth, Fareham and Portsmouth which enables them to offer a full locksmith and security service to the Hampshire and Dorset area.

Ace Security provides construction site security, protecting both people and property. Its security guards are trained to look out for potential dangers and ensure they are taken care of before someone hurts themselves. The security guards are available around the clock to protect building and construction sites at any time. Ace Security also offers security services for business events, sport events, festivals, concerts, parties and more.

The Ackermann brand offers Intelligent Life Care solutions for hospitals and nursing homes. A broad, future-oriented portfolio of custom-made fire protection concepts and innovative voice evacuation systems make ESSER one of the leading experts for safety in buildings. Clino Guard from Ackermann, an RFID-based system for networked safety solutions, makes it possible to meet these market requirements.

ACS Solutions offers wide range of cloud services. Whether server resources, applications consulting or professional support of hardware and software on site, ACS is a partner for all aspects of information technology and business communication. The company has its own ultra-modern data centre for efficient services and a highly qualified and motivated team of developers and consultants for client service and optimum support of customer base.

ACTAS A / S provides security to companies and government institutions with extensive professional expertise in the security industry.

Active Intelligence (AI) is a solutions provider with significant experience in the development of IT systems, intelligence gathering, revenue assurance and Logistics Support Analysis strategies to deliver and support a variety of complex products and services. AI together with its network of partner companies is committed to providing specialist and bespoke security solutions to Government and other Organizations.

Aderanet offers a variety of solutions, such as time management, license plate and monitoring solutions.

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.