| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADVANCED JET TRAINING HOLDINGS LIMITED | 06522819 | 12/11/2013 | 06/12/2016 | Silver |
| ADVANCED JET TRAINING LIMITED | 06522504 | 12/11/2013 | 06/12/2016 | Silver |
| ASCENT FLIGHT TRAINING (HOLDINGS) LIMITED | 06522853 | 12/11/2013 | 06/12/2016 | Silver |
| ASCENT FLIGHT TRAINING (MANAGEMENT) LIMITED | 06522636 | 12/11/2013 | 06/12/2016 | Silver |
| ASCENT FLIGHT TRAINING (SERVICES) LIMITED | 06522487 | 12/11/2013 | 06/12/2016 | Gold |
| FIXED WING TRAINING HOLDINGS LIMITED | 09728231 | 11/08/2015 | 06/12/2016 | Amber |
| FIXED WING TRAINING LIMITED | 09729579 | 12/08/2015 | 06/12/2016 | Amber |
| HMT VEHICLES LIMITED | 03598617 | 01/01/2016 | 31/07/2021 | Dissolved |
| LOCKHEED MARTIN UK AMPTHILL GROUP LIMITED | 04141148 | 19/01/2016 | 31/07/2021 | Amber |
| LOCKHEED MARTIN UK AMPTHILL LIMITED | 00585852 | 19/01/2016 | 31/07/2021 | Amber |
| LOCKHEED MARTIN UK HOLDINGS LIMITED | 03184898 | 01/01/2016 | 09/07/2021 | Silver |
| LOCKHEED MARTIN UK LIMITED | 02372738 | 18/01/2016 | 04/03/2021 | Silver |
| LOCKHEED MARTIN UK STRATEGIC SYSTEMS LIMITED | SC353450 | 01/01/2016 | 30/06/2021 | Bronze |
| REAR CREW TRAINING HOLDINGS LIMITED | 06931579 | 12/11/2013 | 06/12/2016 | Silver |
| REAR CREW TRAINING LIMITED | 06931355 | 12/11/2013 | 06/12/2016 | Silver |
| ROTARY WING TRAINING LIMITED | 10029148 | 26/02/2016 | 06/12/2016 | Gold |
| SEABED RESOURCES DEVELOPMENT LIMITED | 08365766 | 18/01/2016 | 29/07/2021 | Amber |
| UK SEABED RESOURCES LIMITED | 08058443 | 18/01/2016 | 29/07/2021 | Amber |