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HiddenLayer

HiddenLayer

Private
Austin, TexasCybersecurityhttps://www.hiddenlayer.com/

Last Round

Series B

Sep 2, 2026

Total Funding Raised

$159.05M

Momentum

Top 1%

of companies Caplight tracks

Company Overview

HiddenLayer is a cybersecurity company that provides a security platform to protect artificial intelligence models and assets from adversarial attacks and vulnerabilities.

Sector

Cybersecurity

Verticals

Application Security, Incident Response, Vulnerability Management, Threat Intelligence

Business Model

B2B

Customer Profile

Subscription SaaS, Services & Consulting, Government Contracts

AI Layer

Infrastructure

Keywords

AI securitymachine learning securityadversarial attack protectionAI security platformLLM securityAI firewallMachine Learning Detection and ResponseMLDRGenAI securityAI Detection & ResponseAIDRAI red teamingadversarial machine learningmodel scannerAI guardrailsAI risk assessmentmodel theft protection

Historical Pricing

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Caplight Momentum Score

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HiddenLayer Comparables

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

HiddenLayer comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Cranium
86%
IronPort Systems
84%
Mindgard
83%

HiddenLayer Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BSep 2, 2026
GrantApr 9, 2024
GrantOct 24, 2023
Series ASep 19, 2023
SeedJul 19, 2022

Key People

Founding team and executive leadership

James Ballard

Co-Founder And CIO

Founding Team

Chris Sestito

Co-Founder & CEO

Founding Team

Jacob Rideout

Chief Technology Officer

Executive Team

Mike Bruchanski

Chief Product Officer

Executive Team

HiddenLayer Investors

Notable investors and investment history

HiddenLayer investors
InvestorRounds
IBM VenturesSeries A
M12 - Microsoft's Venture FundSeries B, Series A
Moore Strategic VenturesSeries A
Morgan StanleySeries B
Ten Eleven VenturesSeries A, Series B, Seed
Booz Allen VenturesSeries A, Series B
Capital One VenturesSeries A

Market signals

Structured signals derived from secondary market and firmographic data.

  • Sep 2, 2026

    $100M round led by Delta-v Capital.

  • Mar 23, 2026

    Launched Agentic Runtime Security capabilities for autonomous AI.

Recent news

Latest coverage and updates

  • signs_new_clientSep 6, 2026

    HiddenLayer, Inc. signed new client Energy on Jan 1st '26.

  • signs_new_clientSep 6, 2026

    HiddenLayer, Inc. signed new client Missile Defense Agency on Jan 1st '26.

  • identified_as_competitor_ofSep 4, 2026

    HiddenLayer, Inc. identified as competitor of Protect AI, Inc..

  • identified_as_competitor_ofSep 4, 2026

    HiddenLayer, Inc. identified as competitor of Robust Intelligence, Inc..

  • identified_as_competitor_ofSep 4, 2026

    HiddenLayer, Inc. identified as competitor of Lakera AI Inc.

HiddenLayer Filings

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

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Frequently Asked Questions

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

Is HiddenLayer a public or private company?

HiddenLayer is a private company.

What is the current stock price of HiddenLayer?

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

How much is HiddenLayer worth (valuation)?

Valuation information for HiddenLayer is not publicly available.

Can I buy HiddenLayer stock?

HiddenLayer 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 HiddenLayer's last funding round?

HiddenLayer's most recent funding round was Grant on April 9, 2024.

Who are the main investors in HiddenLayer?

Key investors in HiddenLayer include M12 - Microsoft's Venture Fund, Moore Strategic Ventures, Ten Eleven Ventures.

Will HiddenLayer IPO soon?

No public IPO plans have been announced for HiddenLayer.

How can I track HiddenLayer secondary market activity?

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

Firmographic Details

HeadquartersAustin, Texas
Employee Range122
Year Founded2022
Last FundingSep 2, 2026

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