Founded in 1989, JSSI offers hourly cost maintenance programs for business aircraft, engines, airframes, and auxiliary power units (APUs). The company provides its clients with comprehensive, flexible, and affordable tools for managing the unpredictable costs of operating and maintaining nearly all types of turbine-powered aircraft, including jets, turbo-props, and helicopters. With a global presence and an infrastructure of certified technical advisors, JSSI is responsible for maintaining over 2,000 business and regional jets and helicopters worldwide. JSSI leverages its technical knowledge, experience, buying power, and data to provide support at every stage of the aircraft life cycle, from acquisition to teardown and part out. GTCR, a leading private equity firm, is a majority investor in JSSI.