- HMP Askham Grange
- HMP Berwyn
- HMP Buckley Hall
- HMP Bure
- HMP Cardiff
- HMP Deerbolt
- HMP Downview
- HMP Drake Hall
- HMP Durham
- HMP East Sutton Park
- HMP Hatfield
- HMP Haverigg
- HMP Hewell
- HMP High Down
- HMP Hindley
- HMP Hollesley Bay
- HMP Holme House
- HMP Humber
- HMP Isle of Wight
- HMP Leeds
- HMP Littlehey
- HMP Liverpool
- HMP New Hall
- HMP Northumberland
- HMP Norwich
- HMP Nottingham
- HMP North Sea Camp
- HMP Oakwood
- HMP Onley
- HMP Parc
- HMP Peterborough – female
- HMP Peterborough – male
- HMP Portland
- HMP Prescoed
- HMP Preston
- HMP Ranby
- HMP Rochester
- HMP Rye Hill
- HMP Send
- HMP Stafford
- HMP Standford Hill
- HMP The Mount
- HMP Usk
- HMP Warren Hill
- HMP Whatton
- HMP Wormwood Scrubs
- HMP Wymott
