Parker-Hannifin is a leading global manufacturer of motion and control technologies, including fluid power systems for the manufacturing and processing industries. It additionally makes hydraulic, fuel, pneumatic, and electromechanical systems and components for the aerospace/defense industry; and motion and control systems for the heating, ventilation, air conditioning, and refrigeration (HVACR) and transportation industries. It owns some 290 manufacturing plants and operates through the two business segments of Diversified Industrial and Aerospace. The company traces its historical roots back to 1918.