Latest Cybersecurity Startup Funding Rounds

Security companies raising capital to protect identities, applications, infrastructure and data.

This page showsSector: Cybersecurity
Rounds
90
Jul 18 – Oct 15, 2026
Disclosed funding
$4B
75 disclosed amounts
Median round
$21M
Of disclosed amounts
90 rounds
Funding rounds
CompanyAmountRoundSectorCountryInvestorsAnnounced
Horizon3Cybersecurity · United StatesCompany profile

Runs autonomous AI-driven penetration testing to secure enterprise networks

Runs autonomous AI-driven penetration testing to secure enterprise networks

$250MSeries ESeries C+CybersecurityUnited StatesInvestors
ZenityCybersecurity · United StatesCompany profile

AI security and governance platform purpose-built for enterprise AI agents

AI security and governance platform purpose-built for enterprise AI agents

$125MSeries CSeries C+CybersecurityUnited StatesInvestors
Balance TheoryCybersecurity · United StatesCompany profile

AI-native platform for cybersecurity investment decisions and execution

AI-native platform for cybersecurity investment decisions and execution

$19MSeries ACybersecurityUnited StatesInvestors
CantinaCybersecurity · United StatesCompany profile

Cantina combines security specialists and AI agents to identify, prioritize, remediate and verify security risks.

Cantina combines security specialists and AI agents to identify, prioritize, remediate and verify security risks.

$8MUndisclosedCybersecurityUnited StatesInvestors
DataBahnCybersecurity · United StatesCompany profile

Agentic Data Control Plane for the enterprise

Agentic Data Control Plane for the enterprise

$40MSeries BCybersecurityUnited StatesInvestors
InforcerCybersecurity · United KingdomCompany profile

Builds software for managed service providers to manage small- and medium-size business clients' Microsoft 365 accounts.

Builds software for managed service providers to manage small- and medium-size business clients' Microsoft 365 accounts.

$50MSeries CSeries C+CybersecurityUnited KingdomInvestors
BikekeyFintech · DenmarkCompany profile

Digital bike registry for theft protection and proof of ownership

Digital bike registry for theft protection and proof of ownership

UndisclosedStrategicUndisclosedCybersecurity, FintechDenmarkInvestors
Onyx SecurityCybersecurity · United StatesCompany profile

Secure AI control plane for the enterprise.

Secure AI control plane for the enterprise.

$113MSeries BCybersecurityUnited StatesInvestors
ThreatLockerCybersecurity · United StatesCompany profile

Zero Trust cybersecurity platform for endpoints, networks, and cloud systems

Zero Trust cybersecurity platform for endpoints, networks, and cloud systems

$190MSeries FSeries C+CybersecurityUnited StatesInvestors
Hush SecurityCybersecurity · IsraelCompany profile

Develops security software for AI agents and non-human identities.

Develops security software for AI agents and non-human identities.

$30MSeries ACybersecurityIsraelInvestors

Active investors in this selection

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Ranked by rounds participated in · From Jul 18, 2026

  1. 1
    Osney Capital

    CodeWall, SCI Semiconductor, Ossprey

    3rounds
    1led
  2. 2
    Sequoia Capital

    Cymphony, AIR, CORMA

    3rounds
    3led
  3. 3
    Bessemer Venture Partners

    Upwind Security, Onyx Security, Act Security

    3rounds
    1led
  4. 4
    Insight Partners

    DataBahn, Inforcer, Spur Intelligence

    3rounds
    —led
  5. 5
    SYN Ventures

    Opsin, Balance Theory

    2rounds
    1led

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