Air Transport Services Group, Inc., together with its subsidiaries, provides aircraft leasing, and air cargo transportation and related services in the United States and internationally. It operates in two segments, Cargo Aircraft Management Inc. (CAM) and ACMI Services. The company offers aircraft, flight crews, aircraft hull and liability insurance, and aviation fuel services; and aircraft maintenance and modification services, including airframe modification and heavy maintenance, component repairs, engineering services, and aircraft line maintenance. It also provides equipment maintenance services; cargo load transfer and package sorting services; crew training services; and airline express operation, line and heavy maintenance, and ground handling services. The company's ground support services include labor and management for cargo load transfer and sorting; design, installation, and maintenance of material handling equipment; leasing and maintenance of ground support equipment; and general facilities maintenance. Further, the company operates cargo and passenger transportation business; resells aviation fuel at the air park in Wilmington, Ohio; resells and brokers aircraft parts; and performs passenger-to-freighter and passenger-to-combi conversions of aircraft. It provides its services to delivery companies, freight forwarders, airlines, air transportation, e-commerce, package delivery, and logistics industries, as well as government customers. The company was formerly known as ABX Holdings, Inc. and changed its name to Air Transport Services Group, Inc. in May 2008. Air Transport Services Group, Inc. was incorporated in 1980 and is headquartered in Wilmington, Ohio. As of April 11, 2025, Air Transport Services Group, Inc. was taken private.