Simon started his professional life as a graduate trainee at Ogilvy & Mather, where he worked for 15 years across their London, Bangkok and New York offices. He then lived and worked in Singapore, Malaysia and San Francisco with other international advertising agencies before returning to the UK to take up the reins at JWT, overseeing their offices in London, Manchester and Ireland. In 2007 he was appointed by WPP to lead major design agencies Brand Union, FITCH and Set Creative as Global CEO. He retired from WPP in 2020 and has since become a strategy and alignment coach based in Stockholm, Sweden and sits on the boards of esteemed Scandinavian agencies: EVERLAND, Kontrapunkt, and Kapero. Simon has served as Head of Training & Development for the IPA (Institute of Practitioners in Advertising) and been a judge of the EFFIE, DBA, Clio and BAD Awards.