The rotten mushrooms
The rotterzwam team consists of a group of enthusiasts who are fully committed to the transition to a circular society.
Most of our staff are employees, with a few on call. We also always have a few friendly volunteers and interns working at the nursery.
For some core activities we work together with partners.

Co-founder en directeur van rotterzwam.
Mark Slegers
Co-founder and director of rotterzwam.
As a consultant in the green economy, he discovered the shortcomings of our current economic system. As a biotechnologist with strategic insight, he now puts his experience into practice. By DOING, he inspires others and encourages them to make a difference too. Do or do not. There is no TRY.
[email protected]

Kwekerij Coördinator
Florian de Deugd
Nursery Coordinator
Florian is a biology graduate and has been working for Rotterzwam since the end of 2022. He will tell you the Rotterzwam story with an organic tone.
[email protected]

Hanna de Bruijn
Master binder - Plant enthusiast and photographer. She started out as a volunteer at Rotterzwam. With her "no nonsense, just action" mentality, she races through the nursery: caring for the mushrooms, colleagues, and volunteers. "A tongue as sharp as a knife, but a heart of tofu."
Loot_Rotterdam
Sales, relatiebeheer & productontwikkeling
Anne Visser
Sales, relationship management & product development
[email protected]

Marketing, Communicatie en ontwerp
Noa van den Boogaard
Marketing, communication & design
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Sales en relatiebeheer
Claudia Arkesteijn
Na 8 jaar lang haar eigen fermentatiebedrijf CLARK Fermentation op te bouwen, brengt Claudia haar passie voor goed, lokaal voedsel nu mee naar rotterzwam als onze nieuwste kracht op het gebied van sales en relatiebeheer.
[email protected]



