Air Transport Services Group, Inc., through its subsidiaries, operates in the airfreight and logistics industry. The company owns and leases cargo aircraft to airlines and other customers. It also provides airline operations to delivery companies, airlines, e-commerce operators, freight forwarders, and the U.S. Military, as well as operates charter agreements. In addition, the company offers mail and package sorting services, as well as related maintenance services for material handling equipment, ground equipment, and facilities; airframe modification and maintenance, component repair, engineering, aircraft line maintenance, and insurance services; and flight crew training, load transfer and sorting services. Further, it rents ground equipment and sells aviation fuel; and engages in the resale and brokerage of aircraft parts. As of December 31, 2019, the company owned a fleet of 94 serviceable Boeing 777,767, 757, and 737 passenger and cargo aircraft. The company, formerly known as ABX Holdings, Inc., was founded in 1980 and is headquartered in Wilmington, Ohio.