Marie-Lise Campeau
Marie-Lise Campeau is the Global President and Chief Executive Officer of Sid Lee Group. She brings over 30 years of experience in building high-performing creative organizations, fostering strong and collaborative team cultures, developing talent, driving growth, and cultivating lasting client partnerships. She has led major international, North American, and Canadian mandates for a wide range of brands, drawing on a rare combination of creative, client, and agency expertise.
Before returning to Sid Lee, Marie-Lise served as President of Ogilvy Canada and held several leadership roles across the industry. She began her career in film, spending ten years at the National Film Board of Canada before transitioning to the agency world — a journey that continues to shape her leadership approach, which is at once creative, strategic, and deeply rooted in culture. She holds an MBA from HEC Montréal as well as two executive leadership certifications from Harvard Business School. She is a trusted advisor to CMOs and CEOs seeking to navigate change, drive growth, and strengthen their brand's relevance.
Marie-Lise rejoined Sid Lee Group in 2024, first as Global Chief Operating Officer, then as Global CEO, drawn by the opportunity to help shape an agency platform with a distinctive global positioning at a pivotal moment of transformation for the industry. A firm believer in the importance of innovation, craftsmanship, culture, and creative reinvention, she brings a resolutely forward-looking vision to an increasingly competitive global market. A recipient of numerous industry awards — including Cannes Lions, Effie, and Clio — she is recognized for her ability to build trust, generate impact, and lead with clarity and conviction.