Bart Nollen

Founder & CEO

Bart has developed, financed and built multiple successful sustainable development companies and projects in a variety of sectors, with a recent focus on renewable energy, biodiversity conservation, biobased economy and ecosystem services. 

He has over twenty years of experience working with both the private and public sectors and runs a portfolio of social-impact businesses including Nollen Group.

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Marlies Quirino

Strategy & Development

Marlies has diverse experience that spans the public, private and not-for-profit sectors, including strategy, project management and fundraising work for fashion brands, charitable foundations and NGOs.

She now focuses on developing projects that support biodiversity, conservation, regenerative farming and the circular economy. 

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Simon Houghton

Industrial Project Development

Simon has been involved with investment and project management in the circular economy for over a decade. He is the founding investor of a successful ESG SAAS enterprise and a Zero Waste to Landfill execution and consultancy. 

He has a passion for driving the transition to the circular economy, and has led project development teams for industrial scale insect facilities in the US and Europe. 

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Jelte-Pier Slump

Industrial Project Development

Jelte-Pier has actively participated in various sustainable and innovative projects, including building an algae farm in the North Sea, and co-founding, building and managing  an insect farm in The Netherlands. 

As a food technologist and entrepreneur, he is determined to accelerate the protein transition.

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Nollen Group is now Circular Investment.

Learn more