Origin of the Boeing Company date back to 1916, when William E. Boeing founded Pacific Aero Products Company. It developed single-engine, two-seat B&W seaplane with Conrad Westervelt.
Renamed The Boeing Airplane Company in 1917, the company initially produced aircrafts: Pursuit Planes, Patrol Bombers and Torpedo Planes AND flying boats for the US Navy. During 1920s, ventured into airmail services and acquired several aircraft and component manufacturers such as Avion, Pratt & Whitney, Sikorsky Aviation, and Hamilton Metalplane.
1934 - Antitrust legislation passed. Boeing underwent a major breakup, which resulted in the formation of three separate entities:
Boeing Airplane Company.
United Aircraft Corporation (later, United Technologies Corporation) United Airlines