All | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
| Bedford | East |
| Belmarsh | London |
| Birmingham | Midlands |
| Blakenhurst | Midlands |
| Blantyre House | South east |
| Blundeston | East |
| Brinsford | Midlands |
| Bristol | South west |
| Brixton | London |
| Broadmoor Hospital | South east |
| Brockhill | North west |
| Buckley Hall | North west |
| Bullingdon | South east |
| Bullwood Hall | East |