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Harmonic Security

Harmonic Security

Private
San Francisco, CaliforniaCybersecurityhttps://www.harmonic.security/

Last Round

Series A

Oct 2, 2024

Total Funding Raised

$24.5M

Momentum

Top 50%

of companies Caplight tracks

Company Overview

Harmonic Security is a cybersecurity company that provides an AI governance and control platform designed to secure sensitive data within generative AI tools.

Sector

Cybersecurity

Verticals

Data Protection, Cloud Security, Data Governance, Compliance & Risk

Business Model

B2B

Customer Profile

Subscription SaaS

AI Layer

Application

Keywords

AI securitydata leakage preventionDLPAI governanceAI Agent Securityagentic AIModel Context ProtocolMCPzero-touch data protectionenterprise AI securityLLM securitydata protection platformshadow AIAI guardrailscybersecurity SaaS

Historical Pricing

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Caplight Momentum Score

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Harmonic Security Comparables

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Harmonic Security comparables — related companies by embedding similarity
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Aurascape
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Bedrock Data
86%

Harmonic Security Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series AOct 2, 2024
Seed RoundJan 4, 2024
SeedOct 19, 2023

Key People

Founding team and executive leadership

Alastair Paterson

Chief Executive Officer

Executive Team

Bryan Woolgar-O'Neil

Chief Technology Officer

Executive Team

Harmonic Security Investors

Notable investors and investment history

Harmonic Security investors
InvestorRounds
Ten Eleven VenturesSeries A, Seed
Storm VenturesSeed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jun 1, 2026

    Named to the Rising in Cyber 2026 list.

  • Mar 22, 2026

    Launched 'Endpoint Agent' and 'MCP Gateway' for go-to-market enablement.

Harmonic Security Filings

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

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Frequently Asked Questions

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

Is Harmonic Security a public or private company?

Harmonic Security is a private company.

What is the current stock price of Harmonic Security?

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

How much is Harmonic Security worth (valuation)?

Valuation information for Harmonic Security is not publicly available.

Can I buy Harmonic Security stock?

Harmonic Security 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 Harmonic Security's last funding round?

Harmonic Security's most recent funding round was Series A on October 2, 2024.

Who are the main investors in Harmonic Security?

Key investors in Harmonic Security include Ten Eleven Ventures.

Will Harmonic Security IPO soon?

No public IPO plans have been announced for Harmonic Security.

How can I track Harmonic Security secondary market activity?

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

Firmographic Details

HeadquartersSan Francisco, California
Employee Range63
Year Founded2023
Last FundingOct 2, 2024

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