Startup profile for Apollo Atomics: latest funding, latest known valuation, total disclosed funding, investors, status, sources, and why the company is interesting. Part of the Venture Capital Tracker startup directory.
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Apollo Atomics funding, valuation and investors

Factory-built, truck-transportable compact pressurized water reactors aimed at AI data centers, industry, and utilities.

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Funding, valuation & investors

Answer-first snapshot

Latest funding

Seed

~$31M · August 2026

Latest known valuation

Not publicly disclosed

Total disclosed equity funding

Not publicly disclosed

Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.

Current status

private

seed · Cambridge, Massachusetts

Investors in latest funding

Lead: FCVC

Other: Y Combinator , Alumni Ventures , Nucleation Capital

Sources: latest funding Last verified: 2026-08-26

Overview

Apollo Atomics is a Cambridge, Massachusetts MIT spinoff developing compact pressurized water reactors designed for factory manufacture, truck transport, and deployment in under 24 months. Around August 20, 2026 it raised an oversubscribed ~$31 million seed led by FCVC with Y Combinator, Telesoft Partners, Alumni Ventures, Robinhood Ventures, Nucleation Capital, Pelion VC, Duke Capital Partners, and angels including Paul Graham and Ray Rothrock. Product classes include A-10, A-50, and A-300 systems; proceeds fund a 1 MW A-1 commercial demonstrator, manufacturing processes, team growth, and NRC engagement. The company claims more than 20 GW of signed letters of intent and is seeking NRC authorization for its selected fuel configuration by end-2026.

Why Apollo Atomics is interesting

August 2026 ~$31M seed (FCVC lead; Y Combinator) for an MIT spinout claiming >20 GW LOIs and under-24-month deploy packaging — nuclear as manufacturable product for AI power demand.

Product & use cases

Compact factory-manufactured PWR systems (10–300 MWe classes) for firm power at data centers and industrial sites.

  • AI data center firm power
  • Industrial on-site generation
  • Utility modular nuclear capacity

Key facts

  • Seed (~Aug 20, 2026): ~$31M; FCVC lead; Y Combinator participates (TechStartups / AlleyWatch)
  • >20 GW signed LOIs claimed (company via press) — LOIs, not deployed GWe
  • Factory-build / truck-transport PWR packaging; A-10 / A-50 / A-300 roadmap
  • NRC engagement plan submitted; A-1 1 MW demonstrator next

Funding history (newest first)

Seed

2026-08 ~$31M

Source: https://techstartups.com/2026/08/20/mit-spinoff-apollo-atomics-raises-31m-to-build-factory-made-nuclear-reactors-for-ai-data-centers/

Investors in our directory

Funds linked from Apollo Atomics's profile — open a fund page for stage focus and related deal articles.

Y Combinator

Competitive landscape

Edge: Known PWR physics with aggressive packaging/manufacturing thesis and early LOI pipeline — licensing and factory execution are the real gates.

Apollo competes on deploy speed and manufacturing repeatability. LOIs and NRC milestones must be diligence’d separately from GW headlines.

  • Valar Atomics / advanced nuclear startups direct

    Same AI-power demand; different stage and tech bets.

  • Traditional nuclear EPCs incumbent

    Megaproject construction timelines.

  • Large-OEM SMRs adjacent

    Utility procurement cycles.

Industries

Climate Tech Deep Tech Infrastructure & Cloud

Related funding articles

Venture Capital Tracker pieces that cover Apollo Atomics's financing or category context.

FAQs about Apollo Atomics

Practical answers founders, operators, and investors typically search for.

Apollo Atomics designs compact PWRs meant to be factory-built, trucked to site, and deployed in under 24 months for large electricity users.
FCVC led the ~$31M seed (~Aug 2026). Directory-linked participant: Y Combinator (/fund/y-combinator).
Seed-stage private company as of August 2026; commercial deployment targeted around 2028 per press.
AI data centers, industrials, utilities, and other large power users. Company cites >20 GW LOIs.
Both target AI-era firm power. Valar’s 2026 Series B was a multibillion mark; Apollo is an earlier seed with compact factory PWR packaging.
Private as of August 2026.
Cambridge, Massachusetts.
Not publicly disclosed — pre-commercial.
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