Our People

Moral compass

Our people put our words into practice. Driven by an inner compass, they want nothing less than to create a better future and a broad and general sense of well-being for everyone. We follow our unique holistic approach to designing affordable, healthy, and sustainable environments in which people, companies, and nature will thrive. Innovation, creativity, resilience, and transparency – we have it all. That is what makes Ballast Nedam Development a source of inspiration for partners who want to make the same goals a reality.


Meet our team of impact makers. Do you want to be part of the most climate-positive area developer in the Netherlands? Check out the Careers page and become part of our movement.

Kerem Günaydin President
Onno Dwars Chief Executive Officer
Sana Derksen Chief Operating Officer
Eray Koçay Chief Investment Officer
Maarten Wittens Region Director South - West
Gerdy Kraus Senior Developer
Matthijs Weggemans Senior Developer
Dirk van den Reek Developer
Nick Strating Developer
Richard de Jong Developer
Tessa Haarler Developer
Robbert Rogge Developer
Rosa Bos Developer
Sam Kapper Developer
Versteeg Versteeg Conlledo Developer
Carolien Vlaar Developer
Pim Kroon Developer
Charmaine Ree Developer
Jules Sanders Developer
Saul Henrion Verpoorten Developer
Michelle Verkerk Assistant Board
Michelle ter Weele Office Manager
Vincent Bakker Marketing Manager
Gilan Beune Marketing & Communications
Ingrid Wijnia Senior Legal Counsel (Legal Manager)
Ömer Cufadar Asset Management Director
Jaap Labrie Head of Finance
Rob Ruijgrok Administrator Project Accounting
Jaco Fourie Investment Analyst
Nathalie Everts Controller
Kevin Lee Controller
Navin Jokhan Financial administrator
Deniz Berkan Unsal Technical Director
Alper Caldiran Head of Technical Operations
Ayça Yetiskin Cost Specialist
Maarten Fuchs Technical Developer
Kamil Boynuegri Developer

Defining Economy

The Ballast Nedam Development philosophy is backed by our enthusiastic team of real go-getters who all have a huge amount of experience and expertise. They are always prepared to reconsider and hone our vision. We want to make a difference in our industry. It is part of our DNA, not just in the Netherlands but worldwide with our international parent company Renaissance and partner IFC (World Bank). We contribute to systematic changes that are crucial to accelerating the transition to a circular economy.

Defining Life with Partners

It goes without saying that our philosophy doesn't stop with us as we collaborate with the best architects and consultants in the Netherlands. Thanks to our partnerships with NGOs, we are able to realize societal goals in which urban development can play a crucial role. That is why we have formed partnerships with NGOs such as JOGG, Vogelbescherming Nederland, Jantje Beton, and the United Nations (SDGs en WHO). Besides that, our projects individually support a broad range of local initiatives. Together with universities and independent institutions, we measure our impact and engage in experiments. Over the years, these unique collaborations have resulted in an extensive track record that demonstrates how our urban development projects lead to verifiable societal benefits.