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.[1]
AAR 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 January 2026, the company operates major maintenance facilities in Greensboro, North Carolina, Indianapolis (closing February 28, 2027), Lake City, Miami, Oklahoma City, and Rockford, Illinois as well as Trois Rivieres, Quebec and Windsor, Ontario in Canada.[2]
History
The company was founded by Ira Allen Eichner in 1951, to supply radios and other equipment to the commercial aviation industry.[3] I.A. Allen Industrial was incorporated in 1955, renamed Allen Aircraft Radio (AAR) in 1962, and became AAR CORP. in 1970.