Diane Quilliet

Diane Quilliet is an accomplished professional with extensive experience in commercial operations and financial management. Currently serving as the Director of Commercial Operations - EMEA at ADP since February 2017, Diane oversees a team of five country commercial operations managers across Europe, driving sales strategy and ensuring operational excellence. Prior to ADP, Diane worked at American Express for over two decades in various leadership roles, including Finance Director for Consumer Cards in multiple regions, where Diane specialized in financial analysis, decision support, and team management. Diane holds a Master’s degree in Finance Management from ESSEC Business School and a BA in Business Administration from the University of Northumbria.