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Quartermaster AI Inc.

Quartermaster AI Inc.

Private
Arlington, VirginiaFrontier & Industrial Techhttps://www.quartermaster.us/

Last Round

Debt

Sep 28, 2026

Est. Valuation

$1B

Total Funding Raised

$184.28M

Momentum

Top 1%

of companies Caplight tracks

Company Overview

Quartermaster AI Inc. is a maritime technology company that develops a distributed sensing network for global maritime awareness using vessel-mounted hardware and artificial intelligence.

Sector

Frontier & Industrial Tech

Verticals

Maritime & Shipping, Defense Tech, Sensors, Edge Computing, Supply Chain Tracking

Business Model

B2B

Customer Profile

Data as a Service, Government Contracts

AI Layer

Application

Keywords

maritime domain awarenessmaritime intelligenceedge AIdefense techsensor fusiondata as a serviceDaaSmaritime surveillanceautonomous defensevessel trackinganomaly detectionautomatic identification systemAISedge computingmaritime securitydark vessel detection

Historical Pricing

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Caplight Momentum Score

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Quartermaster AI Inc. Comparables

Compare Quartermaster AI Inc. with similar companies based on industry and business-model similarity.

Quartermaster AI Inc. comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
SEA.AI
80%
Saildrone
80%
Sofar Ocean
76%

Quartermaster AI Inc. Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
DebtSep 28, 2026
Series BSep 28, 2026
Series AMay 20, 2026
GrantMay 15, 2025
GrantJul 21, 2023

Key People

Founding team and executive leadership

Neil Sobin

Chief Executive Officer

Executive Team

Zachary M. Rubin

Chief Technology Officer

Executive Team

Peter Holden

Fractional CFO

Executive Team

Quartermaster AI Inc. Investors

Notable investors and investment history

Quartermaster AI Inc. investors
InvestorRounds
OvermatchSeries B
Thrive Market VenturesSeries A
Steel AtlasSeries A, Series B
First Round CapitalSeries B, Series A
BoxGroupSeries A, Series B
TMVSeries A, Series B
Shorewind CapitalSeries A

Market signals

Structured signals derived from secondary market and firmographic data.

  • Sep 28, 2026

    $40M debt round raised with Stifel Bank.

  • Sep 28, 2026

    $100M round led by Insight Partners.

Recent news

Latest coverage and updates

  • receives_financingSep 29, 2026

    Quartermaster AI Inc raised a $100M Series B led by Insight Partners, alongside a $40 million venture debt facility from Stifel, to expand its ocean data network; the financing was announced in Virginia on Sep 28th '26.

  • receives_financingSep 28, 2026

    Quartermaster AI Inc raised $43M in Series A funding co-led by First Round Capital and Quiet Capital, with participation from TMV Logistics, Steel Atlas, BoxGroup, Operator Partners, Shorewind Capital, and David Adelman, to address the ocean’s data gap.

  • receives_financingSep 28, 2026

    Quartermaster AI Inc raises $140M on Sep 28th '26, comprising a $100M Series B led by Insight Partners with participation from Overmatch Ventures and returning investors, plus a $40M venture debt facility from Stifel, to build its distributed ocean data network, expand engineering, and recruit vessels.

Quartermaster AI Inc. Filings

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Quartermaster AI Inc. filings preview — column headings only; records require access
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Frequently Asked Questions

Common questions about Quartermaster AI Inc.'s valuation, stock price, and market status.

Is Quartermaster AI Inc. a public or private company?

Quartermaster AI Inc. is a private company.

What is the current stock price of Quartermaster AI Inc.?

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

How much is Quartermaster AI Inc. worth (valuation)?

Quartermaster AI Inc.'s valuation is estimated at $1.0B based on funding round data.

Can I buy Quartermaster AI Inc. stock?

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

When was Quartermaster AI Inc.'s last funding round?

Quartermaster AI Inc.'s most recent funding round was Debt on September 28, 2026.

Who are the main investors in Quartermaster AI Inc.?

Key investors in Quartermaster AI Inc. include First Round Capital, Quiet Capital, Insight Partners.

Will Quartermaster AI Inc. IPO soon?

No public IPO plans have been announced for Quartermaster AI Inc..

How can I track Quartermaster AI Inc. secondary market activity?

Caplight tracks bids, offers, and trades in Quartermaster AI Inc.'s shares on secondary markets.

Firmographic Details

HeadquartersArlington, Virginia
Employee Range74
Year Founded2023
Last FundingSep 28, 2026

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