1/ST (1/ST Group of Companies) provides technology, accounting, financial and consultancy services for a wide range of companies. They also offer information technology, legal, and consultancy services,

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.

6 Alpha Associates is an independent risk management consultancy practice. The company delivers consultancy as well as end-to-end Project Management services globally, for the assessment and management of risks in the Renewable Energy, Upstream Oil & Gas, Civil Engineering, Security and Business Resilience sectors. 6 Alpha offers Threat and Risk Assessments, Counter Terrorist planning, Security Engineering Advice, Security Risk Assessments, etc.

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.

Based in Welwyn Garden City and specialists in intruder and CCTV systems, as well as offering all other building services. All their installations are covered by a 12-month guarantee for labour and parts and are fitted by friendly and professional tradesmen. They also offer repair and maintenance services for new and existing systems. Serving all of Welwyn, Hertfordshire and London.

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.

Abeera Ltd is a local, reliable electronic security company based in Croydon, serving customers across London. They provide electronic security systems, including wireless alarm systems, gate automation systems, door entry systems, CCTV systems, and burglar alarms that offer 24/7 protection to home and business premises.

Acctiv8 supply the most flexible & reliable wireless burglar alarm security and safety system on the market. Acctiv8 Wireless Burglar alarms are unique because they not only protect your valuables from intruders but also act as a remotely monitored safety system.

Ad Hoc Property Management offers property security solutions to European market leaders. The company protects vacant properties using the Property Guardian model, ensuring such properties are not left to become derelict. Ad Hoc offers solutions for threats such as squatting and asset stripping through socially responsible property protection.

AD Porta are a dedicated railway security specialist. They are currently providing security to major rail projects in the London area as well as trackside security during upgrade and enabling works.

ADB Alarms have been been installing security and alarm systems for more than 25 years. The company was founded by Managing Director, Alan Bennett, who has been in the security business since 1980, so you can be sure you are in safe hands. The company continually stay up-to-date with the latest security and fire alarm technologies, so the customers are assured of the highest levels of security and safety at all times.

Advance Fire is one of the leading fire protection companies in Yorkshire. With over 30 years of experience in Fire Detection, Prevention and Security, the company designs, installs, commissions, and maintains all types of fire alarm systems, emergency lighting, smoke vent systems, and security products etc. Advance Fire also provides fire talks and on site staff training to all businesses.

Advanced Overwatch are one of Northern Ireland's leading CCTV System, Burglar Alarm and Security System installation companies offering the latest in security technology, installed by expert engineers.