G4S was incorporated on July 1st 1988 under the name Securicor (Barbados) Limited. On July 20th 2004, the merger of Securicor plc and Group4Falck brought together three well-known brands: Group4, Wackenhut and Securicor and  in 2005 G4S Security Services (Barbados) Limited was formed. The company was later rebranded to G4S Secure Solutions (Barbados) Limited on February 16th, 2011.

G4S, as part of Allied Universal®, employs more than 800,000 people in over 80 countries.