74 Anti-Aircraft Brigade was initially under War Office control from about July 1943. It became part of GHQ AA Troops, England in June 1944. It moved to France in August in support of the Canadians. In September they covered the Seine crossings and then moved to Boulogne and were in Antwerp by the end of the month. In November they relieved 100 AA Brigade at the Mook and Grave bridges. By the end of the war 74 Anti-Aircraft Brigade were still supporting the Canadians.
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.
| Mar 43 | Leicestershire |  | Jul 43 |
| Jan 44 | Dorset | | War Office control |
| Jun 44 | GHQ AA Troops UK |  | 21 Army Group |
| Aug 44 | Rouen & Seine crossings |  | 1 Canadian Army |
| Sep 44 | Boulogne | | 1 Canadian Army |
| Sep 44 | Antwerp | | 1 Canadian Army |
| Nov 44 | Nijmegen | | 1 Canadian Army |
| Nov 44 | Mook & Grave Bridges | | 1 Canadian Army |
Order of Battle June 1944
| 115 Heavy Anti-Aircraft Regiment (361, 365, 367 Batteries) |
| 126 Light Anti-Aircraft Regiment (415, 429, 430 Batteries) |
| 133 Light Anti-Aircraft Regiment (442, 443, 444 Batteries) |
Order of Battle September 1944
| Rouen |
| 60 Heavy Anti-Aircraft Regiment (168, 169, 206 Batteries) |
| 115 Heavy Anti-Aircraft Regiment (361, 365, 367 Batteries) |
| Seine crossings |
| 54 Light Anti-Aircraft Regiment (160, 161, 162 Batteries) |
| 114 Light Anti-Aircraft Regiment (372, 373, 375 Batteries) |
Order of Battle 12th September 1944
| Boulogne |
| 60 Heavy Anti-Aircraft Regiment |
Order of Battle 24th September 1944
| Antwerp |
| 115 Heavy Anti-Aircraft Regiment |
| 54 Light Anti-Aircraft Regiment |
| 5 Light Anti-Aircraft/Searchlight Battery |
Order of Battle November 1944
| Nijmegen |
| 60 Heavy Anti-Aircraft Regiment |
| 90 Heavy Anti-Aircraft Regiment (272, 284, 285 Batteries) |
| 113 Light Anti-Aircraft Regiment (368, 369, 370 Batteries) |
| 321 Battery, 93 Light Anti-Aircraft Regiment |
| 557 Troop, 269 Battery, 77 Light Anti-Aircraft Regiment |
| Mook Bridge |
| 382 Battery, 108 Heavy Anti-Aircraft Regiment |
| 109 Light Anti-Aircraft Regiment (357, 358, 359 Batteries) |
| 474 Searchlight Troop |
| Grave Bridge |
| 123 Light Anti-Aircraft Regiment (405, 408, 409 Batteries) |
| One troop, 321 Battery, 93 Light Anti-Aircraft Regiment |
| 356 Searchlight Troop |
Order of Battle December 1944
| 60 Heavy Anti-Aircraft Regiment |
| 115 Heavy Anti-Aircraft Regiment |
| 126 Light Anti-Aircraft Regiment |
| 321 Battery, 93 Light Anti-Aircraft Regiment |
| 502 Battery, 149 Light Anti-Aircraft Regiment |
| 1 Battery, 6 Canadian Light Anti-Aircraft Regiment |
| 5 Light Anti-Aircraft/Searchlight Battery |
| 2 troops, 356 Independent Searchlight Battery |
| 2 troops, 474 Independent Searchlight Battery |
| 2 troops, 557 Independent Searchlight Battery |
Order of Battle April 1945
| 60 Heavy Anti-Aircraft Regiment |
| 126 Light Anti-Aircraft Regiment |
| 133 Light Anti-Aircraft Regiment |
| 8 Battery, 4 Light Anti-Aircraft Regiment |
| 320 Battery, 93 Light Anti-Aircraft Regiment |
| 2 Searchlight Regiment (4, 6 Batteries) |
