Epsilon fuels global growth with appointment of Matt Simpson as Chief International Officer

Epsilon today announced the appointment of Matt Simpson as Chief International Officer, a newly created role focused on the growth and differentiation of Epsilon’s suite of data, identity, media, and technology solutions around the world.

Based in London, Simpson will partner closely with Epsilon and Publicis Groupe market and regional leaders, to unlock marketing effectiveness for clients. He will lead a prioritised international roadmap for Epsilon offerings while strengthening the commercial and operational integration of Epsilon solutions across Publicis Groupe entities, including MRCL and Connected Media, and local-market agency teams.

Simpson will report directly to Epsilon CEO Sean Reardon.

“Epsilon has an extraordinary opportunity to become the essential growth partner for marketers in every major market,” said Sean Reardon, CEO of Epsilon. “Matt brings the transformation expertise and operational discipline to translate our global capabilities into meaningful local solutions that drive marketing impact. His leadership will help us move faster, scale with greater consistency and unlock the full power of data and identity across our international business.”

Simpson’s appointment builds on the momentum of Epsilon’s recent executive hires in the U.S., including Michael Chock as Chief Growth Officer, Ant McDonagh as General Manager of Epsilon Digital and Kathleen Dundas as Chief Solutions Officer. Together, these appointments strengthen Epsilon’s leadership across growth, digital media, data, and technology as the company advances its next phase of global growth.

Simpson joins Epsilon from Omnicom Media Group, where he served as Executive Vice President, Chief Digital Operations Officer. He brings more than 25 years of experience helping large, complex marketing organisations turn digital disruption into scalable commercial operating models. Throughout his career, he has led major changes in digital media planning and buying, brought together regional capabilities and built global performance and commerce propositions. More recently, he has focused on scaling technology-led products and operating models, including the application of AI to media activation and optimisation, working across international agency networks and with leading technology partners and clients.

“Epsilon has tremendous strengths in data, identity and technology, and there is a significant opportunity to bring more of those capabilities to clients internationally,” said Matt Simpson, Chief International Officer of Epsilon. “My focus will be on working with colleagues across Publicis Groupe to understand where we can make the biggest difference for clients and then finding practical ways to make it happen. I'm looking to build on what works and scale that success across markets.”