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Our executive management

Ecofys is a key player in sustainable energy solutions and climate change issues. Profound knowledge, innovation and dedication are what drive our daily work. These ambitions and skills are reflected in our Executive Management team.

Manon Janssen,

Manon Janssen, CEO Ecofys


Kees van der Leun,

Kees van der Leun


Joris de Groot,

Joris de Groot


Kornelis Blok,
Director of Science

Kornelis Blok


Carsten Petersdorff,
Regional Director DACH

Carsten Petersdorff

Anja de Jong,
Finance Director

Anja de Jong


Joop Oude Lohuis,
Client Director

Joop Oude Lohuis


Ria Oonk,
Client Director

Ria Oonk


Michiel Haverkorn van Rijsewijk,
Client Director

Michiel Haverkorn van Rijsewijk