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
Our plan
Interested?
In this interview with FundsUp, our CEO Joost Kruytzer shares how we bring climate and circular tech from lab to market.
You can also hear more from Joost by following this link to the Leaders in Cleantech podcast.
For all the latest news, insights, and updates, follow us on LinkedIn
We invite universities / institutes / companies / inventors to share interesting IP that can reshape the world into a circular and net zero environment.
BigCircle welcomes entrepreneurial talent, potential startup CxOs, venture building talent and experts in climate and circularity.
BigCircle offers early stage investors significantly derisked returns through diversification, scale and continuous support of our ventures.
Our Venture Building Approach
Identify New Tech
Validate with Experts
Recruit the Team
Found the Venture
Support till Exit
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.

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.

Danaë
Bouwmeester
Venture Development Intern
Danaë is a Venture Development Intern at BigCircle Ventures, supporting the development of climate-focused innovations. With a background in Chemical Engineering and Sustainable Energy Technology, and an interest in economics, Danaë leverages her skills to assess impactful technologies that contribute to a sustainable future.

Joost
Beemer
Capital & Sourcing
Joost is responsible for 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.

Jarno
van den Heuvel
Venture Finance
Jarno is responsible for the finance and legal infrastructure and will contribute to the venture financing activities. He has gained deep financial experience as auditor with EY (being a Dutch CPA/RA), as financial/management at impact start-ups and as impact investor (a.o. CarbonFix).

Roger
Kalkman
Venture Development Intern
Roger is a Venture Development Intern at BigCircle Ventures and a Master’s student in Sustainable Energy Technology at TU Delft. With experience as a consultant for Sustainable Student Consultancy and as working student at Coolset, he’s eager to contribute to climate technology, using his complex problem-solving skills to drive positive change.

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).

Eelco
Dekker
Advisor
Eelco supports the team with deep tech IP scouting by strengthening the network with relevant stakeholders at universities, technology institutes and corporates. Eelco first gained experience with corporate venturing at Royal DSM, and has since worked with multiple promising start ups in clean energy and chemicals from around the world.

Simon
Knowles
Talent Acquisition
Simon is responsible for recruitment, 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.
BigCircle
Ventures
About us
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. By using a long-proven model for discovering, nurturing and funding, we aim to be the world’s leading cleantech venture builder and boost the world’s journey towards sustainability.