Colt Technology Services Group Limited (formerly COLT Telecom Group S.A.) is a multinational telecommunications company headquartered in London, United Kingdom. It was listed on the London Stock Exchange and was a constituent of the FTSE 250 Index until it was acquired by Fidelity Investments in August 2015.

Traded as:           LSE: COLT

Industry:              Telecoms, Managed services

Founded:            1992 (London)

Headquarters:   London, England, United Kingdom

Website:              www.colt.net