Nucleation Capital
Nucleation Capital is a Seed, Series A, Pre-Seed venture capital firm based in Menlo Park, CA investing in Other, Climate / Energy, Deep Tech. The firm typically writes $250K–$3.0M checks and has 2 portfolio companies in our records.
- Check size
- $250K–$3.0M
- Portfolio
- 2 companies on record
- Partners
- 1 listed
- Stage
- Seed, Series A, Pre-Seed
- Sectors
- Other, Climate / Energy, Deep Tech
- HQ
- Menlo Park, CA
- AUM
- Not in our records
Last verified: 2026-04-11
Seed, Series A, Pre-Seed
$250K – $3.0M
2+ companies
1 partner
Investment Thesis
Invests specifically in nuclear and deep decarbonization technologies, including enabling software and infrastructure for nuclear deployment.
How Nucleation Capital invests
Nucleation Capital is a vc firm based in Menlo Park, CA. The firm invests at the Seed, Series A, Pre-Seed stages, with a focus on Other, Climate / Energy, Deep Tech.
Nucleation Capital typically writes checks of $250K–$3.0M per investment.
Nucleation Capital has backed 2 companies in our records, including Oklo, TerraPower.
Partners & Team
Jonathan Webb
Co-Founder & Managing Partner
Industry Focus
Invests In
Portfolio Companies (2)
Other
Oklo
TerraPower
- •Raising at Seed, Series A, Pre-Seed? You're squarely in their sweet spot.
- •Lead with your fit in Other, Climate / Energy, Deep Tech — the sectors they actively back.
- •Size your ask to their typical $250K – $3.0M check.
- •warm intro preferred
- •Address your outreach to a specific partner, such as Jonathan Webb, Co-Founder & Managing Partner.
- •A warm introduction beats a cold email. Get matched and request an intro.
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