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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

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HiddenLayer comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Cranium
83%
Gray Swan
83%
DeepKeep
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.

HiddenLayer Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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HiddenLayer Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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

Firmographic Details

HeadquartersAustin, Texas
Employee Range173
Year Founded2022
Last FundingSep 2, 2026

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