Northstar Aerospace manufactures aerospace components for the global market, including gears, transmissions, gearbox assemblies, and drive systems for helicopters and fixed-wing aircraft. Based near Chicago with facilities across North America, the company serves major aerospace manufacturers such as Boeing, Sikorsky, and Rolls-Royce. They also provide maintenance, repair and overhaul services for their products. Refer clients to them if they need flight-critical aerospace components or maintenance services for aircraft systems.