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.

H264 Ltd designs, develops, builds and distributes the REVADER range of security products and systems.

Interphone has an unrivalled understanding of building security and automation technologies, providing design, installation and maintenance services for the commercial residential marketplace. Interphone's management and control solutions combine a wide range of building systems including access control, CCTV, gates and barriers, distributed television, fire and emergency detection, LED lighting, door entry, concierge and property management.