| Airbus |
| Airbus UK |
| The Airscrew Company |
| Airwork Services |
| Alba Orbital |
| Andair |
| BAe Dynamics |
| BAE Systems |
| Bristol Spaceplanes |
| British Aerospace |
| British Airways Maintenance Cardiff |
| BTR Aerospace Group |
| Carden Aero Engines |
| De Havilland Aviation |
| De Havilland Propellers |
| Defence Aviation Repair Agency |
| DMC International Imaging |
| Dowty Group |
| Dowty Propellers |
| Dunlop Standard Aerospace Group |
| General Dynamics UK |
| GFS Projects |
| GKN |
| Hawker Siddeley Dynamics |
| Martin Hearn Ltd |
| Hordern-Richmond |
| Hybrid Air Vehicles |
| Marshall Group |
| Matra BAe Dynamics |
| MBDA UK |
| Meggitt |
| Messier-Dowty |
| Oxsensis |
| Pulsar Fusion |
| Reaction Engines |
| Rolls-Royce Controls and Data Services |
| Rolls-Royce Holdings |
| Skyrora |
| Smiths Group |
| Surrey Satellite Technology |
| Thales Training & Simulation |
| The Falcon Airscrew Company |
| The Metal Airscrew Company |
| UKAMS |
| Vertical Aerospace |