Our Team

Pierre-Emmanuel Saint-Esprit
Founder & Executive Director of the Global Circular Economy Chair

Passionate about the circular economy, Pierre-Emmanuel Saint-Esprit co-founded ZACK at the age of 22 while studying at ESSEC and the University of California Berkeley.

ZACK is the leading company in France in the second life of electronic products and the extension of their life (recycling, repair, resale, donation to associations). It has been acquired by the Manutan Group. In 2020, ZACK was one of the top 3 French circular companies according to the TECH FOR GOOD report of the Presidency of the French Republic, with Phénix and Castalie. That same year, Pierre-Emmanuel won the vote of all BCG employees for the social entrepreneur of the year award.

In 2021, he was among the top 50 CSR personalities established by the Giverny Circle, alongside Antoine Sire (BNP Paribas), Hélène Valade or Olivia Grégoire (Secretary of State for CSR). Finally, he is nominated in the 30 Under 30 ranking of Forbes France which devotes a list to the rising stars of the French entrepreneurial ecosystem.

Pierre-Emmanuel is also a Professor of Circular Economy, the President of the ESSEC Alumni Entrepreneurs Club, pioneer of the Ellen MacArthur Foundation for the Circular Economy, a mentor at Antropia ESSEC, and the Ambassador of the IMPACT FRANCE Movement.

Pierre-Emmanuel is regularly invited to discuss the challenges of the circular economy and its progress in France (UEED, BFM TV, Le Point, Le Parisien, Le Figaro, Produrable, LH Forum, Cercle de Giverny...).

Wilfried Sand-Zantman
older of the Global Circular Economy Chair, Professor at ESSEC

Wilfried Sand-Zantman is a graduate of ENSAE (Paris) and holds a doctorate in economics from the University of Toulouse Capitole.

He joined ESSEC Business School as Full Professor in 2020 from Toulouse School of Economics where he was Full Professor ("Agrégé des Universités") and director of the Doctoral Program.

Wilfried Sand-Zantman is a board member of the French Gaming Authority (Autorité Nationale des Jeux) and also the associate editor of the Revue Française d'Economie and of Information, Economics and Policy. He has also worked as a consultant for EDF, CNES, Orange, SFR, and Telefonica.

His research interests include industrial organization, market regulation, digital economics, and environmental economics.

His articles have been published in French academic journals (Revue Economique, Annales d'Economie et Statistiques, ...) as well as international journals (Journal of European Economic Association, Management Science, Rand Journal of Economics...).

Thierry Sibieude
older of the Global Circular Economy Chair, Professor at ESSEC

After a career in urban services (“Générale des Eaux”, former Veolia), Thierry Sibieude has been a professor at ESSEC Business School since 1996. He founded the Social Entrepreneurship Chair in 2003 and has been the Chair Professor.

His main research areas are Social Entrepreneurship, Social Impact Measurement, CSR and Management of Sustainability, and Management of Non-Profit Organization, with a focus in the field of disabled people and social public policies.

He created the first French MOOC on social entrepreneurship "L'entreprise qui change le monde", completed by "Changer le monde: passons à l'action", "Les partenariats qui changent le monde" and then a series of 3 MOOCs on "L'impact investing, la finance qui change le monde". They are all available on the Coursera platform, free of charge.

In 2002, he also created an innovative program, the PQPM program that proposes a solution to improve social diversity in university education.

Furthermore, Thierry Sibieude developed a local political involvement, being elected as “conseiller general” in the Val d’Oise Council from 2001 to 2015. He is an administrator of the PwC Foundation too.

From 2015 to 2019, he was the General Manager of the ESSEC campus in Rabat.