Deep Fission
Agent44Agent Readiness: 44/100. Above median. Measured by StartupHub.ai. Median 41.Trust88Data Trust: 88/100. Top 25%. Measured by StartupHub.ai. Median 61.Pioneering underground small modular nuclear reactors for scalable, low-carbon baseload power.
About
Deep Fission is an advanced nuclear energy company developing small modular pressurized water reactors (SMRs) designed to be placed one mile underground in boreholes. This approach aims to reduce costs, improve safety through natural containment, and enable faster, more scalable deployment of clean, reliable baseload power, particularly for data centers and industrial customers. The company is working with the U.S.
Similar companies
Building the world's first mass-produced portable nuclear generators for anywhere power delivery.
Shares Clean Energy, Small Modular Reactor
Nuclear energy startup developing small, high-temperature reactors for AI data centers and industrial applications.
Shares Climate Tech, Clean Energy
Data center infrastructure developer providing power sources and site development, focusing on clean-powered, shovel-ready sites for energy-intensive workloads like AI.
Shares Clean Energy, Energy Infrastructure
Pan-European battery storage and renewable energy platform developing, constructing, and operating solar, wind, and battery storage projects.
Shares Energy Infrastructure, Clean Energy
Developer of micro-modular reactor (MMR) technology for clean energy.
Shares Small Modular Reactor, Clean Energy
Direct air capture startup producing CO2 and hydrogen for e-fuels and negative emissions.
Shares Climate Tech, Energy Infrastructure
Key facts
- Website
- deepfission.com
- Headquarters
- Berkeley, United States
- Founded
- 2023
- Employees
- 65
- Total funding
- $155M (IPO)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Post-money | Lead investors |
|---|---|---|---|---|
| 17 Jun 2026 | IPO | $40M | $1.7B | |
| 19 May 2026 | Public Offering | Undisclosed | ||
| 10 Feb 2026 | Series B | $80M | ||
| 15 Jan 2025 | Series B | $30M | Quantum Ventures | |
| 22 Aug 2024 | Pre-Seed | $4M | 8VC | |
| 27 Sept 2023 | Undisclosed round | $1M |
Tech stack
Detected on deepfission.com, last scanned 21 Oct 2026. Run your own scan
- Frontend
- Bootstrap
- Analytics
- Google Analytics 4
- CDN
- AWS CloudFront
- Hosting
- AWS
- Email provider
- Microsoft 365
- Cookie consent
- Cookiebot
Deep Fission scores 45. Does yours?
That is its Ahrefs DR: the backlink strength of a domain, on the Ahrefs 0 to 100 scale. Paste your website and you get yours in about a minute.
Frequently asked
What does Deep Fission do?
Department of Energy's Reactor Pilot Program and is pursuing a Nasdaq IPO.
Is Deep Fission trustworthy and reputable?
StartupHub's Data Trust & Reputation score for Deep Fission is 88 out of 100, a trusted rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.
How much funding has Deep Fission raised?
Deep Fission has raised a total of $155M in funding. The most recent round on record is IPO.
How many employees does Deep Fission have?
Deep Fission has approximately 65 people on record.
Public record
SEC filings, insider activity, nonprofit links and pay benchmarks for Deep Fission
