G4S plc is a British multinational security services company headquartered in Crawley.

 

The company runs 5 prisons in the UK, and ran the UK's first privatised prison, Wolds, in Yorkshire. They take contracts from the government for childrens detention centres, tagging of offenders, and were in charge of security for the Olympics, for which they famously failed to provide enough staff, and had to be backed up by the Army.

 

G4S have been repeatedly bailed out in this manner after failing to provide the service they were contracted for. They have also had contracts taken away from them multiple times, for the same reason.