The Boeing Company is an American multinational corporation that designs and manufactures airplanes, rotorcraft, rockets, satellites, and missiles worldwide. The company also provides leasing and product support services. Boeing is among the largest global aerospace manufacturers; it is the fourth-largest defense contractor in the world based on 2022 revenue and is the largest exporter in the United States by dollar value. Boeing was founded in 1916 by William E. Boeing in Seattle, Washington. The present corporation is the result of the Boeing acquisition of McDonnell Douglas on August 1, 1997.