94 Anti-Aircraft Regiment RA (TA) was formed at Turnhouse, Edinburgh in April 1939. It was re-designated as 94 Heavy Anti-Aircraft Regiment RA (TA) in June 1940. The Regiment was placed in suspended animation in July 1944. 94 Heavy Anti-Aircraft Regiment RA (TA) was reconstituted as 494 (City of Edinburgh) (M) Heavy Anti-Aircraft Regiment RA (TA) in January 1947.
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.
| Apr 39 |  |
3 Anti-Aircraft Division, 36 Anti-Aircraft Brigade | Edinburgh, UK |
| Jan 41 |  |
War Office Reserve | UK |
| Jun 41 | Western Desert Force, 12 Anti-Aircraft Brigade | Mersa Matruh, Egypt | |
| Sep 41 |  |
8 Army, 12 Anti-Aircraft Brigade | Sidi Barrani, Egypt |
| Nov 41 | |
8 Army, 12 Anti-Aircraft Brigade | Gambut, Libya |
| Jan 42 | |
8 Army, 12 Anti-Aircraft Brigade | Msus, Libya |
| May 42 | |
8 Army, 12 Anti-Aircraft Brigade | Gazala, Libya |
| Jul 42 | |
8 Army, 12 Anti-Aircraft Brigade | El Alamein, Egypt |
| Jan 43 | |
8 Army, 12 Anti-Aircraft Brigade | Tripoli, Libya |
| Jul 44 | Suspended animation |
Batteries
| Apr 39 | 228, 291, 292 |
| May 41 | 261 (London Transport), 291, 292 |
| Sep 42 | 291, 292 |
| Jan 43 | 261, 291, 292 |