At the same time, acquiring businesses in Canada, Africa, Europe, Asia and the US, established Securicor as a competitor and a global security company too. Finalised in 2004, Securicor merges with Group 4 Falck to form Group 4 Securicor (G4S) and begins trading on the London and Copenhagen Stock Exchange. Between 2004 - 2019, G4S made a number ...