Helicopter Manufacturers  
Airbus Helicopters The helicopter manufacturing division of Airbus
Bell Helicopters American aerospace manufacturer
Cicare Argentinean helicopters manufacturer
Kaman American aerospace company
Kawasaki Helicopters Japanese helicopters manufacturer
Leonardo S.p.A. Italian helicopter manufacturer
MD Helicopters American manufacturer. Produces light utility helicopters for commercial and military use.
Robinson Manufacturer of civil helicopters, based at Zamperini Field in Torrance, California.
Russian Helicopters Russian manufacturer of civil and military helicopters
Sikorsky A Lockheed Martin Company