Jacqueline Watson

Guardian Holdings Ltd. is a UK-based holding British company that was founded in 2008. The private company's subsidiaries design and manufacture equipment primarily for the oil and gas industry.

Part of Core Laboratories, Inc., Core Laboratories (U.K.) Ltd. is a leading provider of reservoir description, production enhancement, and reservoir management services for the petroleum industry. The company is based in London, UK. Additionally, the British company owns Owen Oil Tools, which is the world's largest manufacturer and distributor of perforating systems used in oil and gas wells.

Part of Core Laboratories, Inc., Owen Oil Tools (UK) Ltd. is a petroleum equipment manufacturer and distributor based in London, UK. The British company's product line includes a range of tools and equipment used in drilling, completion, and production operations. The company was founded in 1983 and specializes in providing equipment for the petroleum industry.

Part of Core Laboratories, Inc., Quantoil Ltd. functions as an investment holding company. The company is based in Aberdeen, UK and was founded in 1995.

Part of Core Laboratories, Inc., Core Laboratories Interests Two Ltd. provides financial management services. The company is based in London, UK. It was founded in 2011.

Part of Core Laboratories, Inc., Core Laboratories Interests One Ltd. provides financial management services. The company is based in London, UK. Founded in 2011.