Sir Martin Sorrell is Founder and Executive Chairman of S4 Capital, a company building a purely digital advertising and marketing services business for global, multinational, regional, local clients and millennial-driven influencer brands. S4 Capital has over 2,600 people in 30 countries, with a market capitalization of over $2.6 billion.

A communications savant of global renown, Martin was CEO of WPP for 33 years, building it from a £1 million “shell” company in 1985 into the world’s largest advertising and marketing services company. Prior to that, he was Group Financial Director of Saatchi & Saatchi for 9 years and having worked for Glendinning Associates in the years prior.