Archive Team - GreenTrust

29 July 2026

Ilse Maas – van Veghel

Ilse Maas – van Veghel Business Development Since May 2026, Ilse is working at GreenTrust on initiatives that make our planet greener, both literally and figuratively. As a business developer, she explores new opportunities that will allow GreenTrust to make an even greater impact. She also brings more than fifteen years of experience in the ...

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8 July 2026

Jorick Amsman

Jorick Amsman Development As a sustainable energy development consultant, Jorick is involved in wind parks, solar parks, energy storage, and energy hubs throughout the country. “I’ve been on the basketball court ever since I was six. My dad played, too. And if it’s up to me, I’ll pass on that love for the sport someday. ...

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12 December 2025

Silva Sarkis

Silva Sarkis Staff Anyone dropping by the GreenTrust office in Oosterbeek around half past twelve will see a table laid out, ready for all colleagues and visitors. Silva has been putting on this lavish spread and bringing smiles to everyone’s faces since 2025. I start and end my day with the Bible, because the stories ...

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28 November 2025

Mark Verstegen

Mark Verstegen Realisation Team With a background in mechanical engineering and five years of experience as head of production, Mark Verstegen is our newest project manager realisatier. A role that suits him perfectly. Among other things, he is involved in the final phase of Citizen Wind Farm A2 Lage Rooijen. Donna Summer has a special ...

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13 March 2025

Klaas Guldie

Klaas Guldie In loving memory Klaas is one of the three founding fathers of GreenTrust. To our great sadness, Klaas passed away completely unexpectedly on June 7, 2024. On his way home from France, where he had climbed Mont Ventoux on his bicycle, he passed away in his sleep. His legacy Klaas was not only ...

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10 March 2025

Willem Jaap de Vries

Willem Jaap de Vries Strategic Management Team Willem-Jaap has been active in the wind industry since 2008. At GreenTrust, he works on various projects, such as wind farm Energie Groote Haar and developments in Croatia. He is also the team leader of team MACC. My father taught me windsurfing when I was eight years old. ...

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