- Bussmann Aviation
- Duschak's Intl Helicopters Inc
- Evergreen Helicopter Housing
- Flight Management Corp
- Great Lakes Helicopter
- Helicopter Support Inc
- Helipower Service Svc
- HMU
- Hummingbird Rotorwing Svc
- Lance Aviation Inc
- Pacific Turbine
- Pacific Turbine
- Quality Aviation Svc
- Rams Aviation Inc
- River City Helicopters
- Ro-Wing Aviation
- Rolls-Royce Corp
- Rotor Wing Hawaii Inc
- Rotor Wing Hawaii Inc
- Rotor Wing Hawaii Inc
- South Air Helicopter Inc
- Southwest Helicopter Svc
- Superior Aviation Svc
- Temsco Helicopters Inc
- Tero Tek Intl Inc
- Texas Helicopter Co
- Turbomeca
- Uniflight Inc
