Revenue: £63.1m (-14%)
Headcount: 245
Not to be confused with the popular TV crime drama of the same name, this London-based outfit is in fact an IBM partner focused on serving highly regulated markets running complex, high-performance IT infrastructures. Ageing calendar 2021 accounts show revenue falling 14% to £63.1m. In October 2023, former leader Alan Watkins resumed the role of Executive Chairman as Group CEO Simon Frisk stepped down.
Oxygen ice-breaker: CSI showcases Domestic & General and Buckinghamshire Building Society among its recent customer case studies.
