Parker-Hannifin Corp. is a diversified manufacturer of motion and control technologies and systems, providing precision engineered solutions for a wide variety of mobile, industrial and aerospace markets. The company operates through three business segments: Industrial, Aerospace, and Climate & Industrial Controls. The Industrial Segment is an aggregation of several business units, which manufacture motion-control and fluid power system components for builders and users of various types of manufacturing, packaging, processing, transportation, agricultural, construction, and military vehicles and equipment. The Aerospace Segment produces hydraulic, fuel, pneumatic and electro-mechanical systems and components, which are utilized on virtually every domestic commercial, military and general aviation aircraft and also performs a vital role in naval vessels and land-based weapons systems. This Segment serves original equipment and maintenance, repair and overhaul customers worldwide. The Climate & Industrial Controls Segment manufactures motion-control systems and components for use primarily in the refrigeration and air conditioning and transportation industries. The company was founded by Arthur L. Parker in 1918 and is headquartered in Cleveland, OH.