Alan Christie

Proserv Group, Inc. manufactures production equipment for the oil and gas industry. The firm offers drilling and production technology products, including control systems, regulators, and fluid sampling technology systems; check, relief, shuttle, SPM, directional control, and instrumentation valves; and chemical injection equipment, systems, panels, and skids. It also provides subsea control systems, installation and intervention control systems, and subsea dredging and sampling systems; and BOP stack and tree refurbishment, assembly, FAT, and SIT solutions for subsea and offshore renewable markets. The company was founded in 1974 and is headquartered in Westhill, the United Kingdom.

Part of SLB NV, Schlumberger Plc is a British technology company that specializes in oilfield services. The company is based in Horley, UK. The company provides effective fracturing services to help connect wellbores to more reservoir rock. Founded in 1977, the company achieves accurate depth control and ensures target zone coverage while controlling hydrostatic balance.

Onesubsea Operations Ltd. develops subsea oilfield equipment. Its products include MARS production optimization modules and production optimization simulation software. The firm services include reservoir management, subsea engineering, and subsea pumping and process systems. The company was founded in May, 1999 by Ian Donald and is headquartered in Portlethen, the United Kingdom.