Matt Isaacs is executive chairman of digital marketing agency Essence,  the world’s largest independent buyer of digital media. A former management consultant, he co-founded the company in 2005 and now works with clients including Google, eBay and Barclays.

Matt has led rapid international growth, with over £460m of media bought and 41 languages spoken by its 480 employees in offices in London, New York, Seattle, San Francisco, Singapore and Tokyo. The company generated half of its £141m turnover in North America in 2013, supported by its acquisition of two US agencies during the previous year.