AAR Corp. is an American provider of aircraft maintenance services to commercial and government customers worldwide. The company is headquartered in Wood Dale, Illinois, a Chicago suburb. The company employs about 6,000 people, operating in about 30 different countries. John Holmes is the current CEO. AAR is an independent provider of aviation services. It sells both new and used parts and is one of the largest in the world for selling used parts. AAR has about $2.5 billion in revenue as of 2024. As of May 2023, the company operates major maintenance facilities in Indianapolis, Miami, Oklahoma City, Rockford, Illinois, Trois Rivieres, Quebec and Windsor, Ontario. AAR's component repair and landing gear repair services are conducted at owned facilities in Chonburi, Thailand and Amsterdam, Netherlands. It also has leased facilities in Brussels, Belgium and Crawley, United Kingdom. In addition, AAR operates sales offices from locations in London, Crawley, Paris, Rio de Janeiro, Tokyo, Shanghai, Singapore, and Dubai. Wikipedia