Didier H. Keller

PHI Aviation LLC engages in the provision of helicopter services. It focuses on the exploration, development, production of oil and gas, and air medical transportation services for hospitals and emergency service agencies. The Technical Services segment provides helicopter repair and overhaul services for existing flight operations customers. The company was founded in February 1949 and is headquartered in Lafayette, LA.

Single Buoy Moorings, Inc. manufactures oil and gas field machinery and equipment. Its activities include the engineering, supply and offshore installation of floating facilities for the production, storage and export of crude oil, gas and liquefied natural gas (LNG). The firm's services include floating production storage and offloading systems (FPSOs), floating storage and offloading systems (FSOs), tension leg platforms (TLPs), monohull and semi-submersible floating production units (FPUs) as well as self elevating mobile offshore production units (MOPUs). Single Buoy Moorings was founded in 1969 and is headquartered in Marly, Switzerland.

Dietsmann NV engages in maintenance of production plant in the oil and gas, power and mining industries. Its services include maintenance engineering, operation and maintenance services, electrical and instrumentation engineering and construction, and technical assistance services. The company was founded by Peter R. G. Kütemann in 1977 and is headquartered in Breda, the Netherlands.