AAR CORP.

AAR CORP. is a global aerospace and defense aftermarket solutions company, providing a comprehensive range of aviation services to commercial and government customers worldwide. Headquartered in Wood Dale, Illinois, USA, the company's mission is to "go above and beyond to provide value-driven aerospace aftermarket solutions to meet the evolving needs of our customers worldwide."

The company operates through four primary segments: Parts Supply, Repair & Engineering, Integrated Solutions, and Expeditionary Services. Its offerings include the sale and leasing of used serviceable engine and airframe parts, distribution of new parts, airframe maintenance, component repair, and overhaul services. AAR also provides fleet management, operation of customer-owned aircraft, supply chain logistics programs, and specialized software solutions such as Trax, Aerostrat, and Airvoyant. The company serves commercial airlines, which constitute its largest customer segment, as well as government and defense markets globally.

Led by Chairman, President, and CEO John M. Holmes, AAR has recently expanded its capabilities and market presence. In April 2026, the company completed the acquisition of Aircraft Reconfig Technologies (ART), enhancing its engineering and certification services, and launched Airvoyant, an AI-driven procurement platform for the aviation industry. AAR also expanded its commercial distribution partnership with Woodward for engine components and secured significant contracts, including a $305 million follow-on C-40A contract for the U.S. Navy and Marine Corps and $450 million in pallet contracts for the U.S. Air Force. In November 2025, AAR acquired HAECO Americas, solidifying its position as a leading MRO provider in North America. The company reported record consolidated sales of $2.8 billion in Fiscal Year 2025.