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Quartermaster AI

Quartermaster AI

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

Last Round

Series B

Sep 28, 2026

Est. Valuation

$1B

Total Funding Raised

$144.28M

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

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

Business Model

B2B

Customer Profile

Subscription SaaS, Government Contracts, Hardware Sales

AI Layer

Application

Keywords

maritime domain awarenessMDAdefense techdual-use technologymaritime intelligenceedge computingsensor fusionvessel trackingautonomous defensemaritime securityreal-time monitoringhardware-enabled SaaSAI surveillancesupply chain visibilitymaritime analytics

Historical Pricing

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Caplight Momentum Score

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Quartermaster AI Comparables

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Quartermaster AI comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
SEA.AI
81%
Saildrone
77%
Windward
74%

Quartermaster AI Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
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 Investors

Notable investors and investment history

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

Market signals

Structured signals derived from secondary market and firmographic data.

  • Sep 28, 2026

    $100M round led by Insight Partners.

  • Jul 15, 2026

    Grew 61% QoQ, from 46 to 74 employees.

Recent news

Latest coverage and updates

  • receives_financingSep 28, 2026

    Quartermaster AI Inc receives financing of $100M in Series B.

Quartermaster AI Filings

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

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

Is Quartermaster a public or private company?

Quartermaster is a private company.

What is the current stock price of Quartermaster?

Quartermaster is a private company with no public stock price. No recent secondary market data is available.

How much is Quartermaster worth (valuation)?

Valuation information for Quartermaster is not publicly available.

Can I buy Quartermaster stock?

Quartermaster shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was Quartermaster's last funding round?

Quartermaster's most recent funding round was Series A on May 22, 2026.

Who are the main investors in Quartermaster?

Key investors in Quartermaster include First Round Capital, Quiet Capital.

Will Quartermaster IPO soon?

No public IPO plans have been announced for Quartermaster.

How can I track Quartermaster secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Quartermaster's secondary market activity and sign up for updates.

Firmographic Details

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

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