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Horizon3

Horizon3 is an AI-native proactive security company that develops NodeZero, an autonomous penetration testing platform. The platform uses AI to simulate real-world cyberattacks, enabling organizations to continuously identify, validate, and remediate exploitable security vulnerabilities across enterprise, government, and regulated industries.

Leadership & Board

Latest Estimated Valuation

Estimated Valuation
$2B
Total Amount Raised
$250M
Total Funding Rounds
1
Latest Funding Amount
$250M
Latest Funding Round
Series E
Post-Money Valuation
$2B

Funding Round

Funding DateFunding RoundAmount RaisedPost-Money Valuation
Aug 04, 2026Series E$250.00M$2.00B

Investors

Investor NameFunding Round
NightDragonSeries E
NEASeries E
Acrew CapitalSeries E
Blue Cloud VenturesSeries E
PSGSeries E
SAICSeries E
Sapphire VenturesSeries E
Craft VenturesSeries E

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