41 Anti-Aircraft Brigade was formed in September 1938 at Westminster, London. It served with Anti-Aircraft Command for the entire war. It was based at various locations in Eastern England including the East Coast Diver defences. 41 Anti-Aircraft Brigade became an administration unit after VE Day responsible for units waiting for demobilisation.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Sep 38 | Formed Westminster, London
War station East Anglia |  | 2 Anti-Aircraft Division |
| Oct 42 | Nottinghamshire |  | 5 Anti-Aircraft Group |
| Oct 44 | Lincolnshire Diver defences | | 5 Anti-Aircraft Group |
| May 45 | Birmingham – administering units
awaiting demobilisation | | |
Order of Battle 1939-40
| 32 (7th City of London) Anti-Aircraft Battalion RE (328, 329, 340 Companies) – Searchlights |
| 1/6th Battalion Essex Regiment (64 Searchlight Regiment) (441, 442, 443 Companies) |
| 2/6th Battalion Essex Regiment (65 Searchlight Regiment) (444, 445, 446 Companies) |
| 78 (1st East Anglian) Heavy Anti-Aircraft Regiment (243, 244, 245, 409 Batteries) |
Order of Battle 1940-41
| 78 (1st East Anglian) Heavy Anti-Aircraft Regiment (243, 244, 245, 409 Batteries) |
| 29 Light Anti-Aircraft Regiment (108, 121, 126, 237 Batteries) |
| 60 (Middlesex) Searchlight Regiment (429, 430, 431 Batteries) |
| 65 (Essex Regiment) Searchlight Regiment (444, 445, 446 Batteries) |
| 69 (3rd City of London) Searchlight Regiment (456, 457, 458 Batteries) |
| 121 AA Z Battery – Joined May left June 1941 |
Order of Battle 1941-42
| 78 (1st East Anglian) Heavy Anti-Aircraft Regiment (243, 244, 245, 468 Batteries) – Left April 1942 |
| 106 Heavy Anti-Aircraft Regiment (270, 327, 331, 332 Batteries) – Joined May left July 1942 |
| 128 Heavy Anti-Aircraft Regiment (287, 309, 407, 436 Batteries) – Joined July left August 1942 |
| 161 (Mixed) Heavy Anti-Aircraft Regiment (447, 448 (M), 558 (M) Batteries) – Joined August 1942 |
| 64 Light Anti-Aircraft Regiment (191, 193, 285, 458 Batteries) – Joined May left June 1942 |
| 82 Light Anti-Aircraft Regiment (102, 216, 275, 282, 473 Batteries) – Joined August 1942 |
| 113 (Durham Light Infantry) Light Anti-Aircraft Regiment (368, 369, 370, 371 Batteries) – Joined April 1942 |
| 126 Light Anti-Aircraft Regiment (415, 429, 430, 431 Batteries) – Joined May 1942 |
| 60 (Middlesex) Searchlight Regiment (429, 430, 431 Batteries) – Left January 1942 |
| 69 Searchlight Regiment (456, 457, 458, 561 Batteries) |
| 72 (Middlesex) Searchlight Regiment (465, 466, 467, 510 Batteries) – Joined late 1941 |
Order of Battle 1942-43
| 161 (Mixed) Heavy Anti-Aircraft Regiment (447, 448 (M), 558 (M), 593 (M) Batteries) – Left May 1943 |
| 85 Light Anti-Aircraft Regiment (52, 77, 136 Batteries) – Joined November 1942 unbrigaded February 1943 |
| 113 Light Anti-Aircraft Regiment (368, 369, 370, 371 Batteries) – Left March 1943 |
| 126 Light Anti-Aircraft Regiment (415, 429, 430, 431 Batteries) – Left April 1943 |
| 134 Light Anti-Aircraft Regiment (192, 275, 287, 475 Batteries) – Joined November 1942 left May 1943 |
| 139 Light Anti-Aircraft Regiment (94, 177, 230 Batteries) – Joined March left Summer 1943 |
| 58 (Middlesex) Searchlight Regiment (344, 425, 431 Batteries) – Joined February left Summer 1943 |
| 69 Searchlight Regiment (354, 456, 457, 458, 561 Batteries) – Left Summer 1943 |
| 72 Searchlight Regiment (465, 466, 477, 501 Batteries) |
| 82 Searchlight Regiment (483, 510, 525, 554 Batteries) – Joined Summer 1943 |
Order of Battle Summer 1944
| 139 (Mixed) Heavy Anti-Aircraft Regiment (483, 484, 485, 518 (M) Batteries) – Joined July 1944 |
| 151 (Mixed) Heavy Anti-Aircraft Regiment (510, 511, 514, 516 (M) Batteries) – Joined July left August 1944 |
| 172 (Mixed) Heavy Anti-Aircraft Regiment (517, 570, 573 (M) Batteries) – Joined August 1944 |
| 187 (Mixed) Heavy Anti-Aircraft Regiment (626, 644, 645 (M) Batteries) – Joined August 1944 |
| 64 Searchlight Regiment (441, 442, 443 Batteries) – Joined July 1944 |
| 72 Searchlight Regiment (465, 466, 467 Batteries) |
| 82 Searchlight Regiment (483, 510, 525 Batteries) |
Order of Battle Winter 1944-45
| 144 (Mixed) Heavy Anti-Aircraft Regiment (497, 498, 503, 504 (M) Batteries) – Joined December 1944 |
| 172 (Mixed) Heavy Anti-Aircraft Regiment (517, 570, 573 (M) Batteries) – Left November 1944 |
| 182 (Mixed) Heavy Anti-Aircraft Regiment (588, 592, 594 (M) Batteries) – Joined November left December 1944 |
| 67 Light Anti-Aircraft Regiment (200, 202, 279 Batteries) – Joined December 1944 |
| 2 AA Area Mixed Regiment (146, 183, 209 (M) Batteries) – Joined November stood down December 1944 |
| 17 AA Area Mixed Regiment (170, 206, 207, 225 (M) Batteries) – Joined November stood down December 1944 |
