AAR Corporation is a global aviation and defense company that provides a range of products and services to the aviation and defense markets. The company was founded in 1951 and is headquartered in Wood Dale, Illinois. AAR Corporation operates in more than 20 countries around the world and has a strong presence in the United States, Europe, and Asia. The company’s products and services include aircraft maintenance, repair, and overhaul (MRO) services, aviation supply chain management, and defense products and services. AAR Corporation is committed to innovation and to providing high-quality products and services to its customers.