Gordon Stein

Columbus Energy Resources Plc engages in the exploration, acquisition, and development of oil and gas properties. It focuses interest on its production assets in Trinidad and Spain. The company was founded on August 9, 2006 and is headquartered in London, the United Kingdom.

Fairfield Energy Ltd. produces upstream oil. It operates a balanced portfolio of North Sea assets, including the producing Dunlin cluster of fields in the Northern North Sea and the producing Clipper South field in the Southern Gas Basin. The company was founded by Christopher Alan Wright, Jon Gluyas, Jim Henderson, Andrew R. Hockey, and Mark McAllister in September 2005 and is headquartered in Westhill, the United Kingdom.

Acorn Oil & Gas Ltd. provides oil and gas refining services. It extracts crude petroleum and natural gasses. The company was founded by Gordon Bowman Stein and Mark Mcallister in 2001 and is headquartered in Staines, UK.

The Chartered Institute of Public Finance & Accountancy is an international accountancy membership and standard-setting body based in the UK. The private company is based in Croydon, UK, and has subsidiaries in the United Kingdom. The British company is dedicated to public financial management and believes that improving public services is the key to changing lives for the better. The company provides educational and advisory services to support their members, students, and other public finance professionals throughout their careers. The company is committed to making a real difference to the world we live in by ensuring public money is raised and spent with the highest degree of openness. Robert Whiteman has been the CEO of the company since 2013.

Vanguard Energy Ltd. operates as a doormat company. The company was founded by Neil Ritson and is headquartered in London, the United Kingdom.

Part of Challenger Energy Group Plc, Goudron E & P Ltd. is a Trinidadian company that holds rights for oil drilling and extraction. The private company is located in Trinidad and Tobago. Goudron E&P Ltd. was acquired by Columbus Energy Resources Plc, a subsidiary of Challenger Energy Group Plc from Genertel SpA on October 03, 2011 for $9 million.

Part of Challenger Energy Group Plc, Columbus Energy Services Ltd. engages in oil and gas services. The private company is based in Retrench Village, Trinidad and Tobago.

Leni Trinidad Ltd. provides drilling services for oil and gas wells. The company is headquartered in San Fernando, Trinidad and Tobago.

Columbus Energy (St Lucia) Ltd. explores, develops and produces oil and natural gas. The company is headquartered in the United Kingdom.

CleanTech Lithium Ltd. engages in exploration and development of lithium resources. It holds mining exploration and exploitation licenses in Laguna Verde and Francisco Basin projects. The company was founded by Aldo Jose Boitano de Moras and Jason Paul Baverstock in 2017 and is headquartered in London, The United Kingdom.

Kaelo Ltd. is a British company founded in 2016 that offers a smart kitchen accessory that keeps wine perfectly chilled once opened. The company is based in London, UK. The company's product, Kaelo, can serve red, white or sparkling wine at the ideal temperature.