Olivier Chaduteau

Managing Partner


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:

  • Haeri’s Commission on the “Future of Law Profession” in 2017,
  • Darrois’ Commission on “Legal Professions Report”, in 2008,
  • Attali’s Commission on Growth Liberalization for France in 2007.

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.

Using his background with major organizations, Olivier advises Corporate Functions and Professional Services Firms around the world on their strategic and alignment issues.

Olivier has PhD in Economics (2016-2020) from University of Panthéon-Assas (Paris II). His thesis and academic work deal with “The impact of digital innovation on the transformation of the legal market and corporate legal function”.



Doctor of Philosophy (PhD.), in Economics


“The impact of digital innovation on the transformation of the legal market and corporate legal function”

Université Paris 2 Panthéon-Assas
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
  San Jose
Master of Art in Philosophy of language

University of Paris La Sorbonne Nouvelle


Published work

  • « Justice prédictive : l’état de l’art des legaltechs », Editions Dalloz – collection « Thèmes et Commentaires », 2018.
  • « Panorama des legaltechs », Journal de l’Ecole des Mines, n°3 Septembre 2018.
  • « Quand les algorithmes changent le business model des avocats », Dalloz Avocats Décembre 2017.
  • “Legal is Glocal!”, ICW Summit 2016, AFJE.
  • Interviewed by Bloomberg BNA “The Legal Department of the Future”, 2014.
  • “The Market for Business Law Firms in France” Revue Commentaire, September 2014.
  • “The Legal Department of the Future: Towards a new paradigm shift for Legal Departments?”, Lextenso, 2014.
  • “Positioning and Development of Professional Services Firms”, EMS, 2006.
  • “The ABC of Marketing Management”, EMS 2003.

Languages spoken

English and French

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