WPP has appointed Guillaume Epstein as global head of commercial, a newly created role tied to the company’s broader push to simplify how it works with clients.
According to a note obtained by ADWEEK, leadership said the hire is meant to simplify how the company handles pricing, contracts, and client negotiations across its global network.
Epstein joins from Publicis Groupe, where he spent more than a decade in senior finance and commercial roles spanning Europe, Asia-Pacific, and Latin America. Most recently, he served as SVP, global commercial finance director. Prior to that, he was chief operating officer for Brazil and chief commercial officer for APAC within Publicis Communications.



