Simon has 45 years media and advertising experience in agencies, media owners, and research services. He has worked in international roles for over 30 years for two media agency networks – Leo Burnett / Starcom for 10 years, and for the last 21 years at GroupM.

Currently he is GroupM’s global lead on cross media audience measurement and attention, and works across all GroupM companies.

Simon contributes to various GroupM product and advisory boards on effectiveness/attention and GroupM’s proprietary consumer research data spine Audience Origin.

Simon represents GroupM on a number of global, regional, and national industry bodies.