Vendor Approved and Vendor Certified:
- Aero Controlex*
- Aero Fluid
- Bell Helicopter Textron*
- Cessna*
- General Dynamics*
- GE*
- Lockheed Martin*
- LORD Aerospace*
- Lycoming Textron*
- Mercury Marine
- MOOG*
- Motorola
- Parker Hannifin
- Piedmont Propulsion Systems*
- Raytheon*
- Sikorsky Aircraft*
- Zurn
(* certified)