Leadership team
Our leadership team features dynamic and recognized leaders with decades of impactful experience in the sustainability field.
Allon Zeitoun
Quantis Global Lead-
Marcial Vargas
Global Innovation Strategy Lead 
Abby Davidson
Quantis US Lead-
Kristen Tetrick
Global Marketing Lead 
Patrick Dupoux
Chair at Quantis and Senior Partner at BCG
Charlotte Bande
Global Food & Beverage Lead-
Catherine Zwahlen
Global Digital Solutions Lead -
Anne Désérable
Quantis France Lead 
Philipp Meister
Global Fashion, Sporting Goods & Chemical Lead-
Antoine Bois Lemarquis
Global Industries & Services Lead 
Emmanuel Hembert
Global Cosmetics, Personal Care & Pharma Lead-
Sabine Loetscher
Quantis Switzerland Lead -
Sylvain Bertot
Global Talent & Operations Transformation Lead -
Minjon van der Weck
Global Transformation Lead -
Murielle Madrona
Global Finance Lead -
Davide Tonon
Quantis Italy Lead -
Sophie Herrmann
Quantis Germany Lead
What makes Quantis different?
Our people. These are their stories
Our team brings together environmental specialists, engineers, strategists and communicators who combine deep expertise with creative problem-solving. Working across disciplines and perspectives, they collaborate with clients to embed sustainability into the decisions that shape how organizations grow and evolve.
