A
- Aerostructures Hamble
- Aerosud
- AgustaWestland
- Airbus
- Attwater
C
- CAV Aerospoace
- Claverham Ltd
- Cobham
- Curtiss Wright
- Cyber Essentials
D
- Dowty Propellers (GE)
- DE HAVILLAND
E
F
G
- GE Landing Gear – Bishops Cleave
- GE Wolverhampton
- GKN Aerospace – Filton – NDT
- GKN Aerospace – Filton
- GKN Aerospace – IOW
- Goodrich – Birmingham
- Goodrich – Fort Worth
H
- Honeywell
M
- Marshall Aerospace
- Meggitt Avionics
- Messier Services
- Mettis Aerospace
- MOOG
P
- Parker Aerospace
- Police Aviation Services
S
- Safran Electrical & Power
- Safran Helicopter Engines
- Safran Landing Systems
- Safran Nacelles
- SKF Aeroengine UK
U
- Ultra Electronics
- UTC (Collins) – Hamilton Soundstrand
- UTC (Collins) – Wolverhampton
- UTC (Collins) – Aerostructures