| Royal Signals: Regular Army units during early 2005 |
| Unit | Location | Notes |
| 1 Sig Bde | Germany | Supports Allied Rapid Reaction Corps (ARRC) |
| 2 (NC) Sig Bde | Corsham HQ | Mainly TA, national communications during contingencies |
| 11 Sig Bde | Donnington HQ | 1,000 Regular and 2,500 TA personnel, communications for JRRF |
| 3 (UK) Div HQ & Sig Regt | Bulford | Divisional command and control communications |
| 2 Sig Regt | York | With 11 Signal Bde, currently equipping with Cormorant system |
| 10 Sig Regt | Forming | To form part of 2 Sig Bde |
| 14 Sig Regt (EW) | Brawdy | Electronic Warfare |
| 15 Sig Regt | N Ireland | Command & Control communications |
| 21 Sig Regt (Air Sp) | JHF | Communications for the RAF Support Helicopter Force and AAC Apache |
| 22 Sig Regt | Forming | Falcon Communications |
| 30 Sig Regt | Bramcote | Strategic satellite communications to Land & Joint Task Forces |
| 1 (UK) AD and Sig Regt | Germany | Communications for 1st (UK) Armd Div HQ and Bdes |
| 7 (ARRC) Sig Regt | Germany | Part of 1 Sig Bde, supports Allied Rapid Reaction Corps (ARRC) |
| 16 Sig Regt | Germany | Part of 1 Sig Bde, supports Allied Rapid Reaction Corps (ARRC) |
| 11 Signal Regt | Blandford | Training Regt, responsible for Phase 2 and 3 signals training |
| Queens Gurkha Signals | Various | Support 2 Gurkha Inf Bns, 2 and 30 Sig Regts, and others |
| 209 Sig Sqn | Catterick | Independent Sqn, supporting 19 Light Brigade HQ |
| 213 Sig Sqn | Lisburn | Independent Sqn, supporting 39 Infantry Brigade HQ |
| 215 Sig Sqn | Tidworth | Independent Sqn, supporting 1 Mechanised Bde within 3 Div |
| 216 Sig Sqn | Colchester | Independent Sqn, supporting 16 Air Assault Bde HQ |
| 218 Sig Sqn | Londonderry | Independent Sqn, supporting 8 Inf Bde HQ |
| 228 Sig Sqn | Bulford | Independent Sqn, supporting 12 Mech Bde HQ |
| 238 Sig Sqn | London | Independent Sqn, supports London Military District |
| 242 Sig Sqn | Edinburgh | Independent Sqn, supports Army in Scotland & Northern England |
| 261 Sig Sqn | Aldershot | Independent Sqn, supports 101 Logistics Bde HQ |
| 264 Sig Sqn | Hereford | Independent Sqn, supports SAS |
| 200 Sig Sqn | Germany | Independent Sqn, supporting 20 Armd Brigade HQ |
| 204 Sig Sqn | Germany | Independent Sqn, supporting 4 Armd Brigade HQ |
| 207 Sig Sqn | Germany | Independent Sqn, supporting 7 Armd Brigade HQ |
| 262 Sig Sqn | Germany | Independent Sqn, supporting 102 Logistics Brigade HQ |
| 628 Sig Tp | Netherlands | Independent Tp, supports AFNORTH HQ |
| CCU & JSSU | Cyprus | Cyprus Communications Unit and Joint Service Signal Unit |
| JCU (FI) | Falklands | Joint Communications Unit (Falkland Islands) |