Nucleation Fund II Grant
In context
This call is open to startups, small and medium-sized businesses and large companies. Funding is an equity investment. Coverage is read from the notice itself: any country. The funder accepts early-stage applicants.
A traditionally structured venture fund targeting advanced nuclear and climate solutions to accelerate the energy transition, seeking commitments of $5 million or more from investors with a planned first close in 2026. This is an investor commitment opportunity, not a direct grant to project developers or companies.
About this grant
This venture fund targets investors committing at least $5 million to back early-stage companies developing advanced nuclear, carbon capture, and grid enhancement technologies. The fund aims to accelerate the energy transition by supporting startups, small and medium-sized enterprises, and larger companies at seed through Series B growth stages globally. The fund is structured as an equity investment vehicle with a first close targeted for 2026. It is seeking to raise $250 million or more in total capital. Prospective portfolio companies must be focused on technologies that drive progress in advanced nuclear energy, carbon removal, grid modernisation, or broader energy transition solutions.
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Key requirements
- ✓Minimum investor commitment of $5 million
- ✓Fund targeting raise of $250 million or greater
- ✓First close planned for 2026
- ✓Focus on advanced nuclear and climate solutions in energy transition
Frequently asked questions
- How much funding does Nucleation Capital offer?
- Nucleation Fund II offers $5M – $250M.
- Who can apply for Nucleation Fund II?
- Eligibility covers organisations in GLOBAL; startup, sme, large-company.
Relevant sectors
About this sector
Fusion and nuclear funding backs advanced reactor designs, small modular reactors, fuel cycles, materials and the supply chain behind them. Most of it is public research and milestone-based development money, with strict security and safety requirements. Calls typically favour teams with specialist facilities, licensing knowledge and established research partners.
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