D
Deep Fission
Revolutionizing energy with underground small nuclear reactors for safe, low-cost, and reliable power
About Deep Fission
Deep Fission is a pioneering company in the energy sector, specializing in the development and deployment of underground small nuclear reactors. These reactors are designed to provide secure, reliable, and affordable nuclear energy by utilizing existing nuclear technology in unconventional deep rock environments, approximately a mile underground. The company serves a diverse range of clients, including data centers, high-performance computing facilities, and regions with growing energy demands driven by economic development and technological advancements. Deep Fission operates in the clean energy market, focusing on sustainability and environmental responsibility. Its business model revolves around the production and sale of nuclear energy, leveraging its innovative technology to offer a cost-effective and scalable solution. Revenue is generated through long-term energy contracts and partnerships with various industries and governmental entities. The company's mission is to make clean and reliable energy accessible to all, contributing to a brighter and more sustainable future.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2023
- Headquarters
- Berkeley, United States
- Employees
- 70
- Open positions
- 13
- Dealroom signal
- 88.5/100
- Industry
- Energy
- Sub-industry
- Clean Energy
- Sector
- Energy, Nuclear, Sustainable Development Goals, Nuclear Fission, Climate Tech, Woman Founder, NIF defense security and resilience, NIF Energy Security and Climate Change, DT and LS
- Technology
- Deep Tech
- Business model
- Manufacturing
- Client focus
- b2b
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| PRIVATE PLACEMENT NON VC✓Other financing | Feb 2026 | $80M | — | Blue Owl Capital · Mark Tompkins | ↗ |
| SPAC IPO✓Exit | Sep 2025 | $0 | — | Surfside Acquisition | ↗ |
Growth signals
Latest recorded traffic for Deep Fission is 17K monthly website visits, up 146.4% over the last three months.
Open positions
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed1 investor entered at this stage
Series B and later1 investor entered at this stage
- SASurfside Acquisition
Other known investors3 additional known investors
Blue Owl Capital
Mark Tompkins
Montrose Capital Partners
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Deep Fission on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Deep Fission’s full profile on Dealroom
Request a free trial to see the complete deal history, financials, people graph and growth signals.
Takes under a minute. Already use Dealroom? Log in.