Gregory John Herrera

Caltec Ltd. designs, develops and supplies equipment for facilitating production from oil and gas wells. Its solutions include flare recovery, de-gassing liquids, and sand separation. The company was founded in 2003 and is headquartered in Cranfield, UK

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.

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.

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.

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.

ARKeX Ltd. provides geological information to the oil, gas and mining exploration industries. The company specializes in providing non-seismic solutions. It offers multi-client data service that include non-seismic data library and new multi-client acquisition; gravity gradiometry data acquisition services; interpretation of gravity gradiometry, gravity, and magnetic information; and data processing services. The firm also acquires, processes, and interprets gravity gradiometry data in airborne and marine environments. ARKeX was founded by Katherine Jessie Hall, Phillip Houghton, John M. Lumley and Jeremy White in March 2004 and is headquartered in Cambridge, 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.