Privately managed prisons were introduced to the UK in the 1990s.
HM Chief Inspectorate of Prisons inspects private prisons in the same way as public sector prisons. See How Prisons are Regulated for more information. All private prisons have a 'Controller' linking them to the Ministry of Justice, and the governors of private prisons are called 'Directors'.
At present there are 11 private prisons contractually managed by private companies such as GSL, Serco and G4S Justice Services.
HMP Altcourse - GSL
HMP Ashfield - Serco
HMP Bronzefield - Kalyx (previously known as UKDS)
HMP and YOI Doncaster - Serco
HMP Dovegate - Serco
HMP/YOI Forest Bank - Kalyx (previously known as UKDS)
HMP Lowdham Grange - Serco
HMP/YOI Parc - G4S Justice Services
HMP Peterborough - Kalyx (previously known as UKDS)
HMP Rye Hill - GSL
HMP Wolds - GSL