CSG UK PLC specialise in the installation, maintenance and support of security systems for companies and organisations throughout the UK and Europe. CSG UK supply and install comprehensive security systems for national chains and individual businesses in the form of: CCTV, Access Control, Public Address, Intruder Detection and EAS (Electronic Article Surveillance), Fire and Safes.

DC Solutions is a CCTV installer based in Luton.

Intelsec (Intelligent Security Limited) is based in Shefford, Bedfordshire, with regional offices in the UK, Middle East, South Africa, Australia and the USA. Intelsec is at the forefront of the design, development, manufacture and integration of advanced sensing and detection technologies particularly in the fight against illegal immigration and the threat of concealed improvised explosive devices (IED's) on vehicles.