Smokecloak Ltd. - Vapor security system.

Siren Security - Supplies and installs home and business alarm and CCTV systems for burglar, fire detection, and access control in the southern U.K.

Concept Smoke Systems - Suppliers of security smoke and burglar alarm systems.

RJB Security Systems - Installs alarms and CCTV.

AlertSystems Ltd - Alarm system specialists who provide installation, service, and maintenance of CCTV, access controls, intruder and fire alarms, as well as gates and barrier systems for businesses. Also offers free risk assessment and site survey services.

ACT Meters Ltd - Fire and burglar alarms, CCTV, and access control. Home of Checkmate & Son.

Square Solutions - Providing building evacuation and web content management software systems.

Alarming UK - Installations and maintenance of CCTV, access control, and intruder alarms across the U.K.

County Security Systems (CSS) - Installs and maintains security systems, intruder alarms, CCTV, access control, and face recognition systems for business and domestic applications throughout U.K. and Europe.

G4S Security Systems - Installs and maintains security systems, CCTV, intruder alarms, and access control systems across the U.K. and Europe.

RedCARE - Offers system that delivers continuous status signal to monitoring centre.

Powerzone Electronics - Supplies and installs domestic and commercial security systems, vehicle security equipment, car audio and navigation systems, and ATM machines

Languard Alarms - Approved installer of intruder alarms, fire alarms, CCTV, and access control systems throughout Sussex and the south east of England.

Mercury Security - Providing electronic security throughout the U.K.

Euro Alarms Ltd - Installers of security alarms and equipment.

Garfield Security Systems Ltd - Installs and maintains alarm security, CCTV, and access control for homes, businesses, schools, and places of worship in London and south east England.

Jaguar Alarms - Offers installation and maintenance of business and domestic alarm systems.

Euronova Ltd - Offers a range of systems to protect churches, museums, homes, offices, and gardens.

Assured Fire & Security - Assured Fire & Security specializes in the installation and maintenance of fire alarm systems, security alarms, and fire suppression systems. Offers complete fire and security protection service to both public and private sector accounts across the U.K.