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The 20th anniversary edition
March 14 & 15, 2025
at UNESCO / Ministère de la Santé / Mediawan • Paris
In partnership with
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Speakers & Moderators

Cyrielle CALLOT

Cyrielle CALLOT

CEO - Les Alchimistes

Cyrielle is the CEO of Les Alchimistes, a social enterprise specializing in the collection and composting of food waste. Before joining Alexandre Guilluy and Kenzo Sato to form the leadership trio at Les Alchimistes, Cyrielle led BlaBlaCar’s development team for five years, shortly after graduating from HEC Paris. During this time, she developed strong skills in customer acquisition, fundraising, and team structuring.
In early 2018, Cyrielle made a bold career shift to deepen her commitment to ecological and social causes, focusing on circular economy and composting. She leveraged her past experiences to establish the Social Utility Solidarity Enterprise (ESUS) as a national leader in food waste management.
Cyrielle is also a co-founder of Le Noyau, a Nantes-based association that organizes festive events around ecological transition and social cohesion issues. She is actively involved in the governance of several impact-driven organizations, including EcoTable and La Fourche.

Speaks on the theme

The circular revolution: resources at the heart of transitions

Cyrielle CALLOT , CEO - Les Alchimistes

Javier GOYENECHE , Founder and president of Ecoalf

Raphael GUASTAVI , Deputy Director of Circular Economy at ADEME

Xavier HOUOT , Partner at Bain & Company

Maïté KETTERER , Director of Circular Economy at Saint-Gobain

Célia RENNESSON , Co-founder and General Director of Réseau Vrac et Réemploi

Moderation: Cyrielle HARIEL, Impact journalist, author, and speaker

La maison de l'UNESCO, 125 avenue Suffren, 75007 Paris – Salle XI
Friday, March 14 – 11:30 - 13:00
In partnership with LA MACIF