G4S Technology is a global market leader in providing fully integrated security solutions (including access control and video) protecting everything from small offices and schools to large multi-national organisations and high security Government facilities around the world.

Galeco is a renowned supplier of residential and commercial security solutions. They use the most advanced security technologies and solutions to provide a quick, clean and effective security system installation. Galeco supplies CCTV systems, fire alarms, intruder alarms, intercoms, PA systems and other security solutions.

A specialist security business that is focused on the needs of the industry sectors that form the CNI.

ADT Fire & Security has acquired Garfield Security Systems Ltd. and will continue to provide high levels of service. The company is UK’s leading provider of electronic fire and security solutions. ADT are approved burglar alarm installers recognised by NSI, formerly known as NACOSS. The company protect buildings and business; from the smallest shop to the largest retail centre; from workshops to car plants; from underground car parks etc.

Based in Spalding, GB Alarms Ltd. offer a range of services to ensure that their customers feel safe and secure. Its extensive range includes intruder alarms, fire alarms, CCTV systems, access control, guarding services and keyholding. The company has earned reputation with their customers, who range from professional firms with schools to house builders, retailers, haulage operators, port authorities and multisite food processing plants.

Based in Spalding, GB Alarms Ltd. offer a range of services to ensure that their customers feel safe and secure. Its extensive range includes intruder alarms, fire alarms, CCTV systems, access control, guarding services and keyholding. The company has earned reputation with their customers, who range from professional firms with schools to house builders, retailers, haulage operators, port authorities and multisite food processing plants.

GBE provide design, installation and support services for life safety and security systems to major construction projects throughout the UK. GBE is accredited with all major industry bodies and health and safety schemes. The company offers life safety services, such as fire detection and alarm, fire suppression, voice alarm systems as well as emergency voice communication systems.

GC2 Associates are providers of integrated security solutions and factory acceptance testing.

GCS Alarms Ltd. provides installation services to a wide range of security products including security alarm, fire alarm, access control system, or a CCTV system etc. The company's service and installation vehicles carry the most up to date tools and equipment to deal with most situations. Located in Essex, GCS Alarms Ltd. have a fully equipped test and development workshop, dedicated to further improving its systems.

GD Fire & Security is a long established company with an enviable reputation for the design, installation and maintenance of security systems such as CCTV, access control, fire alarms, door entry, and intruder alarms. Located in London, the company provides commercial, public and home security. GD Fire & Security considerable experience and total commitment to quality enables us to provide an outstanding level of service to all our clients.

GemiCon Group Ltd is provider of CCTV monitoring services, with a national workforce of highly trained and fully SIA licensed Operators engaged on contracts designed to ensure the protection of city centres,shopping malls and high risk premises that are particularly vulnerable during the silent hours.

Genie designs, develops, manufactures and supplys Biometric and Access Control systems, Network IP CCTV, HD Analogue CCTV, and a whole array of useful accessories associated with security systems. They are a British company, based in Stevenage, Hertfordshire.

Security Systems Installation Specialist. GK Alarms Ltd install and maintain burglar alarms, CCTV, card access and door entry systems for domestic and commercial clients. In 2009 they were awarded a certificate of Excellence by SSAIB for achieving ongoing high security system installation standard based on British standards.

Global Fire Systems Ltd is a market leader in providing quality products, solutions and services throughout the fire market place. The company designs, supplies, installs, commissions and maintains all forms of Fire and Security Systems throughout the UK.

Global Monitoring Solutions, LLC is designed, built, and operated through the view of a dealer. Using the most advanced technology means, the client’s home or business is protected 24 hours a day. The access-restricted, state-of-the-art facility has met and/or surpassed the most stringent standards as determined by Underwriter Laboratories (U.L). They are utilising the technology of the best in the industry.

Based in Slough, Global Security specialise in providing leading security system solutions for home and business. From simple intruder alarms to multi-building digital CCTV & Biometric access control systems, the company tailor security solutions to meet individual needs. Global Security installation engineers are companys staff and not sub-contracted in.

Established in 1992, Global Security specialises in providing leading security system solutions for homes and businesses. From simple intruder alarms to multi-building digital CCTV & biometric access control systems, it tailor makes security solutions to meet individual needs.

Based in the east midlands, Global Vision offer high quality products and services through dedicated professionals fully trained in design, installation and maintenance of electronic security systems. The fast expanding company deals with basic CCTV packages for a single site to a more sophisticated integrated system, whatever the requirements; Global Vision can provide the solution.

Gloucester Security Alarms (GSA) provide security solutions to properties throughout the South West, UK. They specialise in Intruder alarms, Fire alarms systems, CCTV, Access control and Emergency lighting.

Golden Crown Security is the leading supplier of security services in Hull and have established strong direct links with the local community Police Force. The company is renowned for crime prevention, which has proven to be cost effective to its clients. It can provide a bespoke security service tailored to clients individual needs and requirements.

Goldshield is one of the UK's leading providers of electronic security, surveillance, communications and controls systems, with over 20 years experience in the industry. Located in North Shields, the company specialises in the design, installation and maintenance of social alarms, security systems and fire and emergency lighting systems. Goldshield will deliver a high quality, reliable and cost-effective solution.

Located in West Yorkshire, Gough & Kelly Ltd designed and installed to ensure full compliance with current legal and insurance regulations and are adapted to suit any changes in social and criminal activity. The company installs security systems including CCTV, CCTV monitoring system, and intruder alarms etc. Gough & Kelly Ltd. provide a professional, value for money and efficient proposal while maintaining a very human touch.