Terrence Bernard Cooke

Part of Johnson Matthey Plc, Matthey Finance Ltd. is a holding company based in London, UK. Founded in 1935, the British company's primary focus is on holding companies.

Part of Johnson Matthey Plc, Johnson Matthey Investments Ltd. operates as an investment holding British company. The company is based in London, UK. Founded in 1971.

Part of Johnson Matthey Plc, JM Holdings UK LLC provides financing services. The company is based in Wilmington, DE.

Synetix Ltd. focuses on the sales of catalysts and service technologies in key market segments of edible oils, polymerisation, methanol, ammonia, oil and gas, chemicals, fine chemicals and oleochemicals. The company was founded on July 26, 2002 and is headquartered in London, the United Kingdom.

Tracerco Ltd. designs, manufactures and supports detection, diagnostic and measurement equipment. The company offers nucleonic instrumentation solutions to the process industry, including nucleonic level measurement, density measurement, and interface measurement instruments; process diagnostics technologies; and radiation monitors, including intrinsically safe radiation monitors, as well as radiation monitors calibration, hire, and repair services. It also provides radiation protection training and advice; reservoir characterization services, analytical services including reservoir analysis and radiochemistry analysis. The company was founded in 1958 and is headquartered in London, The United Kingdom.

Founded in 1995, Matthey Holdings Ltd. is a holding British company that provides investment services through its subsidiaries. The company is based in London, UK and is part of Johnson Matthey Plc.

Part of Johnson Matthey Plc, Johnson Matthey SAS is a French company that engages in land rental and other real estate activities. The company is based in Pantin, France. The company was founded in 1982. Karen Hayzen-Smith has been the CEO of the company since 2020.