Our history begins over 100 years ago:
1951-1989Security companies Securicor and Group 4 emerge, and grow throughout Europe.
1990Group 4 Securitas enters the U.S. market by purchasing American Magnetics Corp.
2001American Magnetics Corp. rebrands as AMAG.
2002Group 4 Falck purchases The Wackenhut Corporation, the second-largest security services company in the US.
2004Group 4 Falck merges with Securicor to establish Group 4 Securicor.
2006Group 4 Securicor rebrands as G4S.
2008G4S acquires Touchcom, Inc (now part of G4S Secure Integration), MJM Investigations, Inc. (becomes G4S Compliance & Investigations), and RONCO Consulting Corporation.
2009G4S acquires Adesta, a U.S.-based security integrator, and Sunshine Youth Services (becomes G4S Youth Services).
2010The Wackenhut Corporation rebrands as G4S Secure Solutions (USA) Inc. G4S acquires Western Investigations Pty Limited Australia, (part of G4S Compliance & Investigations), and Nuclear Security Services Company (NSSC) (part of G4S Secure Integration).
2011G4S acquires The Cotswold Group, merging with G4S Compliance & Investigations. Adesta rebrands as G4S Technology, LLC.
2015G4S Technology rebrands as G4S Secure Integration.
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