AAR Corp. is an independent provider of aviation aftermarket solutions to commercial and government aerospace customers worldwide, operating through four segments: Parts Supply (sourcing and distributing used serviceable material and OEM replacement parts), Repair & Engineering (providing airframe maintenance, component repair and engineering services through FAA-certificated repair stations), Integrated Solutions (offering fleet management, supply chain logistics and a cloud-based MRO software platform), and Expeditionary Services (manufacturing and repairing military transportation equipment). The company generates revenue through product sales and services delivered to airlines, cargo operators, aircraft leasing companies, OEMs, the US Department of Defense and Department of State, foreign military organizations, and other aftermarket support providers, with government and defense customers representing a significant portion of sales. AAR grows by expanding its parts distribution network through OEM partnerships, scaling its software platform to major airlines and maintenance providers, integrating acquired capabilities to increase operational efficiency, and winning long-term contracts with government and commercial customers.