Parker Hannifin CorporationCorporation
Headquarters: Cleveland, OHParker-Hannifin Corporation, originally Parker Appliance Company, usually referred to as just Parker, is an American corporation specializing in motion and control technologies. Its corporate headquarters are in Mayfield Heights, Ohio, in Greater Cleveland.
Customer Service: 1 (800) 272-7537
Subsidiaries: Domnick Hunter, Clarcor, LORD Corporation, MORE
CEO: Thomas L. Williams (Feb 1, 2015–)