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Deep Fission

Deep Fission

Public
Menlo Park, CaliforniaTelecomhttps://deepfission.com

Deep Fission is now publicly traded

The data on this page reflects Deep Fission's private-market history up to the point it went public, including its funding rounds, valuation, and investors.

Last Round

Early Funding

Feb 10, 2026

Total Funding Raised

$84M

Company Overview

Deep Fission operates in Telecom and is based in Menlo Park, California. It has raised $84M.

Deep Fission is a nuclear energy company that offers clean, reliable, and affordable power through standardized pressurized water reactors (PWR) leveraging established technology and supply chains from existing nuclear facilities worldwide.

Sector

Telecom

AI Layer

Non-AI

Deep Fission Comparables

Compare Deep Fission with similar companies based on industry and business-model similarity.

Deep Fission comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Last Energy
81%
Apollo Atomics
80%
Hadron Energy
78%
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Deep Fission Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Early FundingFeb 10, 2026
Pre SeedAug 22, 2024
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Key People

Founding team and executive leadership

Stuart Lacey

Chief AI Officer

Executive Team

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Deep Fission Investors

Notable investors and investment history

Deep Fission investors
InvestorRounds
Wave Function VenturesPre Seed
Blue Owl CapitalEarly Funding
EE HoldingsEarly Funding
8VCPre Seed
Black Mountain VenturesPre Seed

Deep Fission Filings

Explore SEC and related filing metadata, where available.

Deep Fission filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Firmographic Details

HeadquartersMenlo Park, California
Employee Range67
Year Founded2009
Last FundingFeb 10, 2026

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