Martin Sorrell
Executive Chairman at S4 Capital
Leading S4 Capital's digital-first approach to advertising and marketing services
Last updated Jun 11, 2026 by ATDb automated enrichment · Connections updated Jun 12, 2026
Sir Martin Sorrell serves as Executive Chairman at S4 Capital, the digital-first advertising and technology services company he founded following his departure from WPP in 2018. He previously spent over three decades as Chief Executive Officer of WPP, transforming it into the world's largest advertising holding company, and before that served as Finance Director at Saatchi & Saatchi. Across his career, Sorrell has been one of the most influential and consequential figures in the global advertising industry.
Chief Executive Officer
WPP (1985-2018)
Finance Director
Saatchi & Saatchi (1977-1984)
Chief Executive Officer
James Gulliver Associates (1975-1977)
- MA, Economics, Christ's College, Cambridge University
- MBA, Harvard Business School
- Founded S4 Capital in 2018, building it into a major digital-first advertising and technology services company
- Transformed WPP from a wire and plastics manufacturer into the world's largest advertising holding company over more than three decades as CEO
- Orchestrated hundreds of acquisitions at WPP, assembling a global network of agencies including Ogilvy, JWT, Young & Rubicam, Grey, and GroupM
- Knighted in 2000 for services to the advertising and communications industry
- Regular columns and commentary in the Financial Times
- Annual WPP reports and industry letters (during WPP tenure)