Security Services Public Limited Company | 13th December 1901 to 11th January 2002 |
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Securicor Group Limited | 11th January 2002 to 28th September 2010 |
G4S Group Holdings 104 (UK) Limited | 28th September 2010 to 30th November 2016 |
Securicor Limited | 30th November 2016 to current |