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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 25%

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

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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
CompanySimilarityMarket Cap
Aurascape
93%
Portal26
87%
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.

  • Mar 22, 2026

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

  • Mar 21, 2026

    Added Apax Partners, a private equity firm, as a customer.

Harmonic Security Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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Harmonic Security Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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

Firmographic Details

HeadquartersSan Francisco, California
Employee Range72
Year Founded2023
Last FundingOct 2, 2024

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