Martin Sorrell

Holdtree Ltd. operates as an administrator of the FIA Formula One Grand Prix Championship and annual Grand Prix races. The company was founded by Bernard Charles Ecclestone in 1996 and is headquartered in London, the United Kingdom.

The Conference Board, Inc. is a membership organization working for the public interests. It creates and disseminates knowledge about management and the marketplace to help businesses in their performance and to better serve the society. The firm publishes information and analysis, makes economics-based forecasts and assesses trends, and facilitates learning by creating communities of interest that bring together senior executives from around the world. The company was founded in 1916 and is headquartered in New York, NY.

Alpha Topco Ltd. operates as a holding company with interest in sport racing events. The company was founded on March 4, 2010 and is headquartered in St. Helier, Jersey.

The Carnegie Hall Society, Inc. promotes musical performances. The company was founded by Andrew Carnegie and Louise Carnegie in 1891 and is headquartered in New York, NY.

The World Economic Forum USA, Inc. operates an organization for economic reforms. The non-profit company is based in New York, NY.

Delta Topco Ltd. operates as a holding company for Formula One group of companies. It engages in the promotion of the FIA Formula One World Championship and exploitation of the sport's commercial rights. The company was founded in 2006 and is headquartered in London, the United Kingdom.

Thrombosis Research Institute investigates and develops emerging health technologies in thrombosis. Its divisions include clinical and laboratory research. The company was founded by Vijay Kakkar in 1965 and is headquartered in London, the United Kingdom.

Clyde Films LLP is a British company that develops commercial films. The private company is based in London, UK.

Cherwell Films LLP is a British company that provides motion picture production services. The private company is based in London, UK. The company was founded in 2004.

J.M.S. Financial Services Ltd. provides investment services. The private company is based in London, UK.

Stanhope Capital LLP /Private Equity/ (Stanhope Capital) is a private equity firm, a subsidiary of Stanhope Capital LLP founded in 2004. The firm is headquartered in London, United Kingdom.

The Carnegie Hall Corp. operates as a non-profit organization that engages in the promotion and management of a venue for musical performances. It also supports educational activities through its Weill Music Institute. The company was founded by Andrew Carnegie in 1891 and is headquartered in New York, NY.

Part of S4 Capital 2 Ltd., S4 Capital Acquisitions 1 Ltd. functions as an investment holding British company. The private company is based in St. Helier, UK.

S4 Capital 2 Ltd. functions as an investment holding British company. The private company is based in St. Helier, UK. and has subsidiaries in United Kingdom.

Part of S4 Capital Plc, S4 Capital Acquisitions 2 Ltd. is an investment holding British company. The private company is based in St. Helier, UK. S4 Capital Acquisitions 2 was founded in 2018.

S4S Ventures (S4S Ventures) is a venture capital firm founded in 2022 by Sanja Partalo and Martin Stuart Sorrell. The firm is headquartered in New York.

JMS Financial Services (No. The private company is based in London, UK. 2) Ltd. provides investment services.