When was Deep Fission founded?

Deep Fission was founded in 2023 and raised its 1st funding round 1 year after it was founded.

Where is Deep Fission located?

Deep Fission is headquartered in Berkeley, United States.

Who is the current CEO of Deep Fission?

Elizabeth Muller of Deep Fission. They have also founded 1 company.

How many employees does Deep Fission have?

As of Jul 31, 2026, the latest employee count at Deep Fission is 73.

Is Deep Fission a funded company?

Deep Fission is a funded company, having raised a total of $84M across 3 funding rounds to date. The company's 1st funding round was a $***** Seed round, raised on Aug 23, 2024.

When was the latest funding round of Deep Fission?

Deep Fission's latest funding was a $***** Angel round on Feb 10, 2026, with participation from 2 investors.

Where does Deep Fission rank among its competitors?

Deep Fission ranks 15th amongst 337 active competitors, of which 21 are funded. It stands 3rd in terms of total funding among its competitors. The most recent competitor to raise funding was Antares Industries, which secured $100M in Jul, 2026.

Who are the top competitors of Deep Fission?

Deep Fission's top competitors include Aalo Atomics, Fortum and Antares Industries. Among them, Antares Industries secured the most recent funding round in July, 2026.

Deep Fission - 2026 Company Profile, Team, Funding & Competitors

Deep Fission is a public company based in Berkeley (United States), founded in 2023 by Elizabeth Muller and Richard Muller. It operates as a Nuclear energy company that is developing a novel, deeply buried, small modular reactor technology designed to provide a safe, clean, and efficient source of power. Deep Fission has raised $84M in funding from 8VC. The company has 337 active competitors, including 21 funded and 56 that have exited. Its top competitors include companies like Aalo Atomics, Fortum and Antares Industries.

Company Details

Deep Fission is a nuclear energy company that is revolutionizing the way power is generated by developing modular nuclear microreactors that can be installed deep underground. The company's innovative design is a combination of traditional pressurized water reactor technology and a unique deep borehole location. With a focus on safety and efficiency, Deep Fission aims to provide a cleaner and more reliable source of energy.

Website: www.deepfission.com/
Email ID: *****@deepfission.com

Key Metrics

Founded Year

2023

Location

Berkeley, United States

Stage

Public

Total Funding

$84M in 3 rounds

Latest Funding Round

Angel, Feb 10, 2026, $*****

Investors

8VC & 2 more

Ranked

15^th among 337 active competitors

Employee Count

73 as on Jul 31, 2026

Similar Companies

Aalo Atomics & 363 more

Exit Details

Public

View Deep Fission's full profile

Deep Fission got listed on Jun 18, 2026.

Click here to take a look at Deep Fission's IPO in detail

Deep Fission has raised a total funding of $84M over 3 rounds. Its first funding round was on Aug 23, 2024. Its latest funding round was a Angel round on Feb 10, 2026 for $*****. 2 investors participated in its latest round. Deep Fission has 1 institutional investor and 2 angel investors.

Here is the list of recent funding rounds of Deep Fission:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Feb 10, 2026	1640867	Angel	4499974	9453873	7542546	9868746
Sep 2025	9931288	Angel	7628489	3142568	5616825	1807284
Aug 23, 2024	7449178	Seed	4116147	3629898	8VC	6658663

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View details of Deep Fission's funding rounds and investors

The founders of Deep Fission are Elizabeth Muller and Richard Muller. Elizabeth Muller is the CEO of Deep Fission.

Here are the details of Deep Fission's key team members:

Elizabeth Muller: Co-Founder & CEO of Deep Fission.
Richard Muller: Co-Founder of Deep Fission.

View details of Deep Fission's Founder profiles and Board Members

Deep Fission's employee count trend

Deep Fission has 73 employees as of Jul 26. Here is Deep Fission's employee count trend over the years:

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Top competitors of Deep Fission include Aalo Atomics, Fortum and Antares Industries. Here is the list of Top 10 competitors of Deep Fission, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Aalo Atomics 2023, Austin (United States), Series B	Manufacturer of mass produced nuclear reactors for data center power	$133M	Valor Equity Partners, Fifty Years & 23 others	68/100
2nd	Fortum 1998, Espoo (Finland), Public	Provider of clean energy solutions	-	Taaleri, Finnfund & 3 others	66/100
3rd	Antares Industries 2023, Los Angeles (United States), Series C	Provider of micro-sized nuclear reactors for remote off-grid	$479M	Caffeinated Capital, Paradigm & 17 others	64/100
4th	Realta Fusion 2021, Madison (United States), Series A	Developer of compact modular fusion systems for industrial heat applications	$45M	Future Ventures, Khosla Ventures & 8 others	63/100
5th	Framatome 1958, Courbevoie (France), Acquired	Manufacturer of nuclear reactor components and provider of engineering services for power plants	-	EDF, DOE & 3 others	57/100
6th	BHI Energy 1979, Weymouth (United States), Acquired	Developer of renewable energy and oil & gas projects	-	Summit Partners, Berkshire Partners & 3 others	57/100
7th	GSE Systems 1971, Baltimore (United States), Acquired	Simulation tools for nuclear power plants	-	NGP Energy Technology Partners, Citizens Bank	56/100
8th	Studsvik 2013, Nykoping (Sweden), Public	Offers solutions for nuclear energy sector	-	Europa, Briban Invest & 1 others	56/100
9th	Ansaldo Energia 1853, Genoa (Italy), Acquired	Power generation plants	-	CDP Equity, European Investment Bank & 3 others	56/100
10th	Tractebel 1986, Brussels (Belgium), Acquired	Provider of engineering and consulting services for sustainable energy projects	-	Capiton, Europa	54/100
15th	Deep Fission 2023, Berkeley (United States), Public	Nuclear energy company that is developing a novel, deeply buried, small modular reactor technology designed to provide a safe, clean, and efficient source of power	$84M	8VC & 2 others	48/100