| Group | Squadron | Base | County | Arrived | Comments |
|---|---|---|---|---|---|
| 11 | 25 | Northolt | Middlesex | 03/09/39 | Blenheim If. |
| 11 | 25 | Filton | Avon | 15/09/39 | |
| 11 | 25 | Northolt | Middlesex | 04/10/39 | |
| 11 | 25 | North Weald | Essex | 16/01/40 | |
| 11 | 25 | Hawkinge | Kent | 10/05/40 | Prototype Whirlwind I, 05/40. |
| 11 | 25 | North Weald | Essex | 12/05/40 | |
| 11 | 25 | Martlesham Heath | Suffolk | 19/06/40 | |
| 11 | 25 | North Weald | Essex | 02/09/40 | Beaufighter If, 09/40. |
| 11 | 25 | Debden | Essex | 08/10/40 | |
| 12 | 25 | Wittering | Northamptonshire | 27/12/40 | Havoc I, 07/41. |
| 82 | 25 | Ballyhalbert | County Down | 16/01/42 | |
| 12 | 25 | Church Fenton | Yorkshire | 17/05/42 | Mosquito NFII, 10/42. Mosquito FBVI, 08/43. |
| 13 | 25 | Acklington | Northumberland | 19/12/43 | Mosquito NFXVII, 12/43. |
| 12 | 25 | Coltishall | Norfolk | 05/02/44 | Mosquito NF30, 09/44. |
| 11 | 25 | Castle Camps | Essex | 27/10/44 | Moved 14/07/45. |