113 Heavy Anti-Aircraft Regiment RA(TA) was formed at TY Croes Camp, Anglesey in November 1940. The Regiment was disbanded in May 1945.
| Nov 40 | Formed | Ty Croes, Anglesey, UK |
| Nov 40 | 50 Anti-Aircraft Brigade, 2 Anti-Aircraft Division | Nottingham, Nottinghamshire, UK |
| Mar 41 | 66 Anti-Aircraft Brigade | Derbyshire, UK |
| Feb 42 | 39 Anti-Aircraft Brigade, 10 Anti-Aircraft Division | Hull, Yorkshire, UK |
| Aug 42 | 51 Anti-Aircraft Brigade, 6 Anti-Aircraft Group | Poolewe, Highlands, UK |
| May 43 | Home Forces | Tarporley, Cheshire, UK |
| Jun 43 | 76 Anti-Aircraft Brigade | Tarporley, Cheshire, UK |
| Jan 44 | 76 Anti-Aircraft Brigade | Southend, Essex, UK |
| Jun 44 | 76 Anti-Aircraft Brigade, 2 Army | Gold Beach, Normandy, France |
| Sep 44 | 76 Anti-Aircraft Brigade | Dieppe, France |
| Sep 44 | 76 Anti-Aircraft Brigade | Boulogne, France |
| Oct 44 | 76 Anti-Aircraft Brigade | Antwerp, Belgium |
| May 45 | Disbanded |
Batteries
| Nov 40 | 359, 362, 366 |
| Feb 41 | 359, 362, 366, 391 |
| Sep 41 | 362, 366, 391, 439 |
| Oct 42 | 362, 366, 391 |
