93 Anti-Aircraft Regiment RA(TA) was formed at Oxton, Birkenhead in April 1939. It was re-designated as 93 Heavy Anti-Aircraft Regiment RA(TA) in June 1940. The Regiment was placed in suspended animation in August 1944 and reconstituted as 493 (M) Heavy Anti-Aircraft Regiment RA(TA) in January 1947.
| Apr 39 | 33 Anti-Aircraft Brigade, 4 Anti-Aircraft Division | Liverpool, Merseyside. UK |
| Jun 41 | 70 Anti-Aircraft Brigade, 4 Anti-Aircraft Division | Liverpool, Merseyside. UK |
| Jul 41 | 44 Anti-Aircraft Brigade, 4 Anti-Aircraft Division | Liverpool, Merseyside. UK |
| Dec 42 | War Office Reserve | UK |
| May 43 | 2 Anti-Aircraft Brigade, Middle East Forces | Libya |
| Aug 44 | Suspended animation |
Batteries
| Apr 39 | 267 (Wirral), 288, 289, 290 |
| May 42 | 267, 288, 289, 290, 416 |
| Jun 42 | 267, 288, 289, 290 |
| Aug 42 | 267, 288, 289, 290 |
| Jan 43 | 267, 288, 289 |
