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Deep Fission
Energy · Berkeley, United States · Founded 2023
Revolutionizing energy with underground small nuclear reactors for safe, low-cost, and reliable power MoreLess
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.
Keywords: underground nuclear reactors, clean energy, affordable power, sustainable technology, deep rock drilling, high-performance computing, data centers, economic development, environmental responsibility, scalable solutions.
Company overview
Deep Fission company information
The essential company record, classifications and operating signals in one place.
- Status
- Operational
- Founded
- 2023
- Headquarters
- Berkeley, United States
- Employees
- 70
- Open positions
- 13
- Dealroom signal
- 88.5
Valuation & funding
Deep Fission 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 | ↗ |
| LATE VC✓Equity / VC | Sep 2025 | $30M | $120M | Undisclosed | ↗ |
| SEED✓Equity / VC | Aug 2024 | $4M | $16M | 8VC | ↗ |
Financials
Workforce over time
Available workforce history. Financial fields without reported data are omitted.
| Year | Employees |
|---|---|
| 2026 | 75 |
Growth signals
Deep Fission website traffic
Latest recorded traffic for Deep Fission is 17K monthly website visits, up 146.4% over the last three months.
Hiring
Open positions at Deep Fission
Current openings linked to this company in Dealroom.
Comparisons
Deep Fission compared with similar companies
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Talent graph
Deep Fission's talent
Source: Dealroom Talent Intelligence.
Global footprint
Where Deep Fission has talent and traffic
team presence
In the news
Latest news about Deep Fission
Recent press, funding announcements, and product moves mentioning Deep Fission — open to read from the original sources.
Market sentiment
What the market is saying about Deep Fission
An AI-synthesized read of the highest-engagement posts about Deep Fission on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
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
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