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Prometheus

Prometheus

Private
San Francisco, CaliforniaFrontier & Industrial Techhttps://prometheus.ai

Last Round

Series B

Jun 11, 2026

Est. Valuation

$41B

Total Funding Raised

$18.2B

Momentum

Top 10%

of companies Caplight tracks

Company Overview

Prometheus operates in Frontier & Industrial Tech and is based in San Francisco, California. Its latest recorded funding round was a Series B round in June 2026.

Prometheus is an artificial intelligence company that develops AI systems for physical economy applications, including engineering, manufacturing, aerospace, and robotics.

Sector

Frontier & Industrial Tech

Verticals

Smart Manufacturing, ML Platforms, Industrial Robotics, Defense Tech, Semiconductors

Business Model

B2B

Customer Profile

Services & Consulting, Government Contracts, Subscription SaaS

AI Layer

Foundation

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Pricing history

Caplight clients see full MarketPrice™ history and secondary transactions.

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

Momentum history

Caplight clients track how buyer interest and sentiment change over time.

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Prometheus Comparables

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

Prometheus comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
PhysicsX
79%
Physical Intelligence
79%
Godela
79%
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Prometheus Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BJun 11, 2026
Series ANov 17, 2025
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Secondary Market Activity

Bids, offers, and trades by month

Data table
OperationDatePriceSizeShare ClassStructure
OFFER
OFFER
OFFER
BID
TRADE

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Prometheus Investors

Notable investors and investment history

Prometheus investors
InvestorRounds
DST GlobalSeries B
ARCH Venture PartnersSeries B
BlackRockSeries B
JPMorgan Chase & Co.Series B

Market signals

Structured signals derived from secondary market and firmographic data.

  • Mar 19, 2026

    $10.0B round at $38.0B post-money valuation.

  • Nov 17, 2025

    $6.2B round raised.

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Prometheus Filings

Explore SEC and related filing metadata, where available.

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

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Frequently Asked Questions

Common questions about Prometheus's valuation, stock price, and market status.

Is Prometheus a public or private company?

Prometheus is a private company.

What is the current stock price of Prometheus?

Prometheus is a private company, so its shares have no public market price. Caplight tracks Prometheus's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.

How much is Prometheus worth (valuation)?

Prometheus's valuation is estimated at $41.0B based on funding round data.

Can I buy Prometheus stock?

Prometheus shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.

When was Prometheus's last funding round?

Prometheus's most recent funding round was Series B on June 11, 2026.

Who are the main investors in Prometheus?

Key investors in Prometheus include DST Global, ARCH Venture Partners, BlackRock, JPMorgan Chase & Co..

Will Prometheus IPO soon?

No public IPO plans have been announced for Prometheus.

How can I track Prometheus secondary market activity?

Caplight tracks bids, offers, and trades in Prometheus's shares on secondary markets.

Firmographic Details

HeadquartersSan Francisco, California
Year Founded2025
Last FundingJun 11, 2026

Institutional Data Access

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