Jet Support Services (JSSI)
Chicago, Illinois, United States
Jet Support Services, Inc. (JSSI) is the largest independent provider of hourly cost maintenance programs for business-aircraft engines, APUs and airframes, founded in Chicago in 1989. Its programs cover more than 2,000 aircraft and it has expanded into parts supply, aircraft valuation via Aircraft Bluebook, maintenance software and advisory services. JSSI is owned by GTCR.