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Atlas Air Worldwide Holdings, Inc. engages in the provision of outsourced aircraft and aviation operating services. It operates through the Airline Operations and Dry Leasing segments. The Airline Operations segment provides outsourced aircraft operating services to customers, including express delivery providers, e-commerce retailers, the U.S. military, charter brokers, freight forwarders, airlines, manufacturers, sports teams and fans, and private charter customers. The Dry Leasing segment consists of the leasing of cargo and passenger aircraft and engines to customers, and aircraft- and lease-management services. The company was founded by Michael Chowdry in 1993 and is headquartered in Purchase, NY.

Bristow Group Inc. provides industrial aviation services to the offshore energy companies in Europe Caspian, Africa, the Americas, and the Asia Pacific. The company offers helicopter charter services to transport personnel between onshore bases and offshore production platforms, drilling rigs, and other installations, as well as to transport time-sensitive equipment to these offshore locations. It also provides search and rescue services for the oil and gas industry, and governmental agencies; and aircraft support services. The company was formerly known as Offshore Logistics Inc. and changed its name to Bristow Group Inc. in February 2006. Bristow Group Inc. was founded in 1955 and is headquartered in Houston, Texas.

Era Group Inc. provides helicopter transportation services primarily to the oil and gas exploration, development, and production companies. Its helicopter services include emergency response search and rescue; and other services, as well as utility services to support firefighting, mining, power line, and pipeline survey activities. The company also leases helicopters to third parties and foreign affiliates. As of December 31, 2018, it owned a total of 108 helicopters, including 9 heavy helicopters, 46 medium helicopters, 23 light twin engine helicopters, and 30 light single engine helicopters. The company operates in the United States, Latin America and the Caribbean, Europe, and Asia. Era Group Inc. was founded in 1948 and is based in Houston, Texas.

PHI, Inc., together with its subsidiaries, provides transportation services to, from, and among offshore facilities for customers in the oil and gas exploration, development, and production industry in the United States and internationally. It operates through three business segments: Oil and Gas, Air Medical, and Technical Services. The Oil and Gas segment provides helicopter services primarily for the integrated and independent oil and gas exploration and production companies, and other offshore oil service companies for routine transportation of personnel and equipment, transportation of personnel during medical and safety emergencies, and evacuation of personnel during the threat of hurricanes and other adverse weather conditions. The Air Medical segment provides air medical transportation services for hospitals and emergency service agencies in 18 states. The Technical Services segment provides helicopter repair and overhaul services for flight operations customers, as well as operates aircraft for the National Science Foundation in Antarctica. It also provides software as a service to certain of its oil and gas customers for passenger check-in and compliance verification. As of December 31, 2017, the company owned or operated 245 aircraft, including 133 dedicated to Oil and Gas operations, 106 dedicated to Air Medical operations, and 6 dedicated to Technical Services operations. PHI, Inc. was founded in 1949 and is headquartered in Lafayette, Louisiana.