Martin Sorrell

Alcoa, Inc. engages in the lightweight metals engineering and manufacturing. Its products are used worldwide in aircraft, automobiles, commercial transportation, packaging, oil and gas, defense, and industrial applications. It operates through the following segments: Alumina; Primary Metals; Global Rolled Products; Engineered Products and Solutions; and Transportation and Construction Solutions. The Alumina segment consists of a portion of Alcoa's upstream operations and consists of the company's worldwide refinery system, including the mining of bauxite, which is then refined into alumina. The Primary Metals segment comprises of Alcoa's upstream operations and consists of the company's worldwide smelter system. The Global Rolled Products segment is involved in the production and sale of aluminum plate, sheet and foil. The Engineered Products and Solutions segment involves in the production and sale of titanium, aluminum, and super alloy investment castings, hard alloy extrusions, forgings and fasteners, aluminum wheels, integrated aluminum structural systems, and architectural extrusions. The Transportation and Construction Solutions segment engages in downstream operations and produces products that are used mostly in the nonresidential building and construction and commercial transportation end markets. The company was founded by Charles Martin Hall on October 1, 1888 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.

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

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

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.

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

Saatchi & Saatchi Plc a holding company, group engaged in advertising and marketing services. The company is headquartered in London, the United Kingdom.

WPP Group USA, Inc. provides communications and media management services. The company is headquartered 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.

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 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.

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 company is based in St. Helier, UK. S4 Capital Acquisitions 2 was founded in 2018.

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

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.