• Timken

• Robertson Fuel Systems

• PTI Technologies

• Northrop Grumman Systems Corporation

• Martin-Baker America

• MarathonNorco Aerospace

• Lockheed Martin

• Hartwell Corp

• Extant Aerospace

• BAE Systems

• Kaman Aerospace Corporation

• Aero Fluid Product

• Triumph

• Parker Hannifin

• Collins Aerospace