Croma Security Solutions Group PLC (CSS Group PLC) is an AIM-quoted total security services provider. The company specialises in guarding, electronic security, CCTV, intruder alarms, video analytics, access control, Biometrics, keyholding, close protection, fire alarms, revenue parking, private investigation, locksmithing, and physical security. CSS' Fastvein Time & Attendance is a biometric attendance and people clocking solution.

Evolve Security Products Limited specialise in the design and manufacture of pedestrian entrance control speed gates and turnstiles. They only sell to the trade via a network of distributors, and installed by their installation partners. Their products are manufactured throughout the world, to their strict quality control procedures.

Optaglio focuses on development and production of optical security devices and holograms and is the world leader in electron beam lithography. Optaglio provides high-end security solutions for protection of goods and documents for everyday life.