John Wingfield

Part of Wellservices BV, PNS (UK) Ltd. provides nitrogen treatment and joint integrity services to the oil and gas industry. The company is based in Normanton, UK.

WSG Provalve Ltd. specializes in valve repairs and overhaul services. The company was founded in 2000 and is headquartered in West Yorkshire, the United Kingdom.

Provalve Ltd. provides business support services. The company is headquartered in Elland, the United Kingdom.

EnerMech Ltd. engages in provision of mechanical engineering products and services. It offers industrial, process, pipeline, training, electrical and instrumentation, valve supply and manufacture, cranes and lifting, subsea umbilicals and cables, equipment rental and valve integrity management services. The firm serves the petrochemicals, LNG, offshore and onshore oil and gas, midstream, power, defence, renewables, infrastructure and mining markets. The company was founded by Doug Duguid on March 1, 2008 and is headquartered in Aberdeen, the United Kingdom.

Caltec Production Solutions Ltd. engages in the provision of improved oil recovery solutions used to increase production from mature oil and gas fields and wells. The company was founded on March 7, 2018 and is headquartered in Milton Keynes, the United Kingdom.

Cereus Ultrasonics Ltd. is a British UK-based company that was founded in 2018. The company specializes in audio ultrasonics using the Cereus engine, which offers a diverse range of equalization techniques. The techniques used at Cereus Ultrasonics were first developed to improve tracking and implementation of drug delivery significantly.

Enhanced Well Technologies AS engages in the investing business. It invests in oilfield service companies. The company was founded on March 13, 2019 and is headquartered in Stavanger, Norway.

Part of Hicks Holdings LLC, Casing Technologies Group Ltd. is a holding British company that provides business support services. The company is based in Westhill, UK. The company was founded in 2007. Casing Technologies Group was acquired by Drilling Tools International Corp. (US) on March 18, 2024 for $0.32 million.

Enpro Subsea Ltd. engages in the supply and distribution of oil field equipment. The firm also provides field development, project management, flow access modules, flow intervention, and field decommissioning products and services. The company was founded by John Reid, Ian Donald, Steven George Morris Robb, and Thomas Gerard Bryce in 2011 and is headquartered in Aberdeen, the United Kingdom.

Abrado, Inc. provides cleanout tools, chemical stimulation treatments and diagnostic technology services to the drilling sector. It offers well abandonment, and section milling services. The company was founded by Alexander Esslemont and C. Mitchell Cox in 2009 and is headquartered in Houston, TX.

Zilift Ltd. develops and markets permanent magnet technologies for artificial lift applications. Its technologies include Zilift TorqueDrive and Zilift SpeedDrive. The firm covers permanent magnet motor and pump technology, fluid dynamics, material science, rotor dynamics, high temperature electronics, variable frequency drive, software and control systems, and well engineering. The company was founded by in May 2009 and is headquartered in Aberdeen, the United Kingdom.

EV Private Equity US Inc (EV Private Equity) is an independent venture capital firm founded in 2002 by Ole Melberg. The firm is headquartered in Houston,Texas with additional offices in Norway, and United Kingdom.

Melberg Partners Holding AS provides commercial and financial advisory services.

Det Stavangerske Dampskibsselskab AS operates as a shipping company. It offers ferries and express boat services. The company was founded in 1855 and is headquartered in Stavanger, Norway.

Halfwave AS provides advanced inspection services based on acoustic resonance technology to the oil & gas industry. It offers pipeline and subsea inspections. The company was founded on June 10, 2011 and is headquartered in Ovre Ervik, Norway.

Deep Casing Tools Ltd. designs and manufactures advanced casing and completion tools for the oil and gas and geothermal industries. It offers Turbocaser Express, Turborunner, Shalerunner, and Turbocaser Deepwater services. The company was founded by Derek Frederick Herrera in 2008 and is headquartered in Aberdeen, the United Kingdom.

WSG (UK) Ltd. engages in the provision of industrial valve solutions. The firm offers process and pipeline services, joint integrity and on-site machining, coiled tubing, and valve repair and refurbishment. The company was founded on February 1, 2007 and is headquartered in Wakefield, the United Kingdom.