Marie-Lise Campeau is the Global CEO of Sid Lee Group, bringing over 30 years of experience in revitalizing agency operations and fostering strong, long-term client partnerships.

She has led major International, North American and Canadian mandates, drawing on a rare
blend of creative, client-side, and agency expertise. Previously Executive Vice-President at Sid Lee Toronto, she returned in 2024 as Global COO before stepping into the Global CEO role. A recipient of numerous industry awards including Cannes Lions, Effies, and Clios. Marie-Lise is known for building trust and driving impact in an ever evolving competitive global market.