John established Hawthorn in 2013 and has built the business into one of the leading independent consultancies in London with operations in New York and the Middle East.

Over the past 10 years, he has advised a broad range of individuals and businesses including NatWest, Forbes, Kering, ION and DLA Piper. In addition, John has advised on some significant fund raisings, M&A as well as issues and litigation support. He has been a top recommended advisor by Spears for 8 years and has been recognised by Chambers for his work in litigation support.

John is a member of the Royal Albert Hall philanthropy board and supports the work of Gemini Untwined.