In his role, Olivier Chaduteau oversees a team of professionals (based in Paris, New York and Casablanca) that helps clients align their organization with their strategy at each stage of their company’s life cycle.
Before creating Day One, Olivier worked at Arthur Andersen as a Director of Marketing and Development, and he developed the marketing and business development function at Ernst & Young (EY).
He is currently a board member at Cognacs Camus and a Mentor for Entrepreneurs at the IME (French Chamber of Commerce).
Olivier has advised:
Olivier is a Lecturer at Sciences Po Law School on “Legal Project Management” and at the executive Master for General Counsels, he teaches also at the Management Consulting Executive MBA program at Toulouse Business School in France.
Olivier is also an expert witness before the Court of Appeal of Paris on “Strategy and corporate management policy”.
Using his background with major organizations, Olivier advises Corporate Functions and Professional Services Firms around the world on their strategic and alignment issues.
Olivier is a PhD Candidate (2017- 2020) at University of Panthéon-Assas (Paris II) in economic sciences. His thesis and academic work deal with “legal and compliance as a competitive advantage”.
Executive Program on “Leading Professional Services Firms”
Harvard Business School, USA |
![]() |
Master of Art in Marketing and Communications
California State University at San Jose, USA |
![]() |
Master of Art in Philosophy of language
University of Paris La Sorbonne Nouvelle |
![]() |
English and French