Deep Fission is revolutionizing the energy landscape with innovative technology that places a small modular pressurized water reactor in a borehole one mile underground. Founded and led by a team of seasoned scientists, engineers, and entrepreneurs, the Company is committed to delivering safe, reliable, and affordable low-carbon power at scale. Deep Fission was recently selected for the Department of Energy’s new Reactor Pilot Program and is targeting criticality by July 2026. Deep Fission was founded in 2023 by father-daughter team Elizabeth and Richard Muller. Learn more at deepfission.com.
Location: United States
Total raised: $114M
Investors 1
| Date | Name | Website |
| 17.09.2025 | Montrose C... | montroseca... |
Funding Rounds 3
| Date | Series | Amount | Investors |
| 10.02.2026 | - | $80M | Dyal Capit... |
| 09.09.2025 | - | $30M | 8VC |
| 23.08.2024 | - | $4M | - |
Mentions in press and media 6
| Date | Title | Description |
| 10.02.2026 | Deep Fission: $80 Million Secured And Blue Owl Tie-Up For Digital Infrastructure Power Deployments | Deep Fission said it has raised $80 million in new financing to accelerate the commercialization of its advanced nuclear approach, which places small modular pressurized water reactors in boreholes about one mile underground. The Berkeley-b... |
| 10.02.2026 | Deep Fission Raises $80M in New Funding | Deep Fission, a Berkeley, CA-based nuclear energy company, raised $80M in new funding. Investors included Ed Eisler of EE Holdings and Mark Tompkins of Montrose Capital, who led the company’s previous financing round in September 2025. In a... |
| 09.09.2025 | Deep Fission Goes Public And Raises $30 Million Private Placement | Deep Fission, a pioneering developer of small modular nuclear reactors designed for deep underground deployment, has announced the successful close of a $30 million private placement offering at $3.00 per share. The heavily oversubscribed r... |
| 23.08.2024 | Deep Fission Raises $4M in Funding | Deep Fission, a Berkeley, CA-based nuclear energy company, raised $4M in funding. The round was led by 8VC. The company intends to use the funds to accelerate efforts in hiring, regulatory approval, and the commercialization of its reactor ... |
| - | Deep Fission | “Deep Fission Nuclear Energy Solutions” |
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