BigCircle Ventures scouts promising deeptech and turns this into successful startups that tackle the world's climate and circularity challenges.
Turn Big
Potential
into Big
Impact
What we do
The world needs cleantech innovations to reach net-zero and circularity, but a wealth of research inventions never gets used at scale. BigCircle Ventures brings a unique flow of early-stage innovations to the market, that would otherwise stay untouched on a shelf, hidden in a university, research institute or company lab.
A university or institute brings the science, we build the venture around it, and our fund puts in the first money.
- University / Company Scientific IP
- BigCircle Builder Venture creation & scaling
- BigCircle Fund Starting capital
Our ventures
Repolyze
Plastic recycling without chemicals or heat
Utrecht University
Eyzor
Iron production and recycling without coal or hydrogen
TU Eindhoven
Lumina Sensing
Pollution measured the moment it appears
St. Andrews University
Conga
See invisible gas leaks from a safe distance
Universiteit Leiden
Circular wastewater treatment venture
One plant's residue is another's raw material
Aqua Minerals
Open Positions
CEO & Co-Founder – Circular Wastewater Treatment Venture
Co-found a venture that converts drinking water residue into a circular replacement for commercial iron salts. Attractive equity stake, full venture-building support behind you.
CEO & Co-Founder – Clean Air Venture
Methane, ammonia and NOx leak invisibly across industry. This handheld sensor makes them visible, in real time and at low cost. Co-found the venture.
Open applications
No matching vacancy right now? We’re always open to meeting exceptional people in venture building and sustainability. Share your CV with us.
Internship venture development climate & circularity
Join our venture development team in Amsterdam and help source, assess and launch deeptech ventures. For Master’s students in science or engineering.
Interested?
Hear our CEO Joost Kruytzer on how we bring climate and circular tech from lab to market. Or follow our latest ventures on LinkedIn.
Our venture building approach
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Identify New Tech
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Validate with Experts
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Attract the Team
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Found the Venture
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Support till Exit
Our Partners
We work with leading universities, research institutes and ecosystem partners to bring cleantech inventions to market.
Team
Freerk
Bisschop
Venture Partner
Freerk leads the energy and climate sectors, selecting and nurturing technologies based on 35 years of experience in entrepreneurship across Europe with a.o. Inven Capital and Rockstart. His expertise spans solar technology, new-energy strategy, green retailing, international growth, venture management and startup funding.
Guusje
Delen
Venture Development
Guusje sources and develops ventures in green chemistry and energy. With a PhD in chemistry, she brings a combination of technical expertise and start-up experience after leading the R&D departments at Amsterdam greentech start-ups Skytree and Ore Energy.
Reinier
van der Vusse
Venture Partner
Reinier leads the biobased and circular materials sectors, which includes IP-sourcing, venture creation / support and expanding our expertise and networks. He gained experience in business development, impact investment and financing of start-ups with among others Polestar Capital and RebelGroup.
Roos
Nuijten
Venture Finance
Roos is part of the Venture Finance team, supporting startups throughout the funding process and preparing for growth. With a Master in Financial Economics and a variety of internships in M&A and Private Equity, she is eager to contribute to venture building and sustainability, using her financial background to drive positive change.
Laurie
Morgan
Legal
Laurie leads the legal function at BigCircle. She is an attorney with broad experience in international commercial law. Prior to joining BigCircle, she advised corporations on some of the world’s largest transactions with Freshfields; and foreign governments on investment policy with the U.S. Department of Commerce.
Siem
Gersen
Venture Development
As part of the Venture Development team, Siem builds relationships with universities and researchers to identify promising inventions and evaluates the climate impact and investability of innovative technologies. With a background in energy, Siem is passionate about driving sustainable energy solutions and supporting ventures that make a positive climate impact.
Alicia
Glennon
Venture Finance
Alicia leads our Venture Finance efforts, developing scalable business models and guiding startups through fundraising and growth. Alicia began her career in M&A at Deutsche Bank, and later advised sustainable scale-ups in clean energy and circularity on capital raising at Sustainable Capital Group.
Sami
Alhelali
Venture Development
Sami sources and develops ventures in energy and climate tech. With a background in engineering physics and electrical engineering, he combines technical expertise with hands-on experience building and scaling startups, from market validation and fundraising to product development and team building.
Joost
Kruytzer
CEO
Joost leads the development of team, model and network. Joost built up NLC, Europe’s largest healthtech venture builder, as its COO. Prior to that, Joost provided board level consulting for 20 years, among others as managing partner of healthcare specialist Plexus (later KPMG Plexus, after the acquisition he negotiated).
Joost
Beemer
Capital & Sourcing
Joost is active in fundraising and sourcing of new technology, with over 20 years of entrepreneurial experience, a background in Cleantech, Real estate and M&A at a.o. Schroders Capital and Kempen, 14 years of board level experience, privately investing in tech startups, board advisor to a.o. accelerator FemTechLab and AtomicOne.
Nicolas
Devaux
Venture Development Intern
Nicolas is an intern in the Venture Development team and is currently completing his engineering degree in Energy Systems and associated Markets. Combining his technical background with a strong interest in innovation and sustainability, he supports the identification and development of technologies with the potential to create real-world impact.
Valentijn
de Mol van Otterloo
Venture Development Intern
Valentijn is an intern in the Venture Development team at BigCircle. He is currently pursuing a Master’s degree in Sustainable Energy Technology, combining his technical background with a strong focus on sustainability. He uses this knowledge to identify and evaluate technologies that can drive the transition towards a more sustainable and circular economy.
Mart
Laurman
Venture Development Intern
Mart is a Venture Development intern and is currently finishing a Master’s degree in Physics & Business Studies. Using his technical- and commercial knowledge, he helps select technologies that are both impactful and commercially viable, aiding the transition to a more sustainable and circular economy.
Simon
Knowles
Talent Acquisition
Simon is our dedicated recruitment partner responsible for attracting exceptional individuals for BigCircle’s internal team and for the ventures. He has over 20 years of experience recruiting for businesses throughout Europe, Africa, Asia-Pacific and the United States, which included working on-site for both start-ups and large blue-chip organisations.