FUNDING
Key Metrics
Company Snapshot
Horizon3.ai is a Cybersecurity company. Latest valuation $2B+ (As of Aug 3, 2026, TechCrunch).
Recent changes
- Aug 3, 2026Aug 3, 2026Raised $250M Series E at a $2B+ valuation TechCrunch
- Aug 3, 2026Aug 3, 2026First reported valuation: $2B+ TechCrunch
- Aug 3, 2026Aug 3, 2026New investor: New Enterprise Associates (NEA) TechCrunch
- Aug 3, 2026Aug 3, 2026Horizon3.ai Triples to $2B in AI Cyber Arms Race Pulse story
Funding History
1 event · sources dated per row| Date | Event | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| Aug 3, 2026 | Series E | $250M | $2B+ | New Enterprise Associates (NEA)NightDragon outlined = lead | TechCrunch |
Investors
Latest Pulse
- Aug 11, 2026AI Agent Security Funding Tops $435M in Two WeeksCorma, Zenity and Horizon3 raised a combined $435 million in the first ten days of August for AI-agent and AI-driven cybersecurity defense, three separate bets that defensive tooling is under-capitalized relative to offensive AI capability.→
- Aug 3, 2026Horizon3.ai Triples to $2B in AI Cyber Arms RaceHorizon3 closed a $250M Series E at a $2B+ valuation, tripling its mark from a year ago as its autonomous 'AI Hacker' pentesting platform posts 120% ARR growth and 7,000+ customers.→
- Aug 3, 2026Horizon3 Hits $2B Valuation as AI Threats Force a Security RethinkHorizon3 raised a $250 million Series E at a $2 billion valuation, betting that AI-accelerated attacks require continuous, autonomous penetration testing rather than the periodic audits most enterprises still rely on.→
Coverage Timeline
newest firstAll Coverage
FUNDING$435M combined
AI Agent Security Funding Tops $435M in Two Weeks
Corma, Zenity and Horizon3 raised a combined $435 million in the first ten days of August for AI-agent and AI-driven cybersecurity defense, three separate bets that defensive tooling is under-capitalized relative to offensive AI capability.
BY THE NUMBERS
FUNDING
Horizon3.ai Triples to $2B in AI Cyber Arms Race
FUNDING$250M Series E
Horizon3.ai Triples to $2B in AI Cyber Arms Race
Horizon3 closed a $250M Series E at a $2B+ valuation, tripling its mark from a year ago as its autonomous 'AI Hacker' pentesting platform posts 120% ARR growth and 7,000+ customers.
FUNDING
Horizon3 Hits $2B Valuation as AI Threats Force a Security Rethink
FUNDING
Horizon3 Hits $2B Valuation as AI Threats Force a Security Rethink
Horizon3 raised a $250 million Series E at a $2 billion valuation, betting that AI-accelerated attacks require continuous, autonomous penetration testing rather than the periodic audits most enterprises still rely on.
Value Add Research
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Sources & methodologyshow
Where these figures come from
- TechCrunchmajor outlet2 facts
Figures are labelled Reported (a source states it), Estimated, Derived (computed from other facts) or Rumored (in talks / unconfirmed). Rumors never replace a confirmed figure. Each figure keeps its own as-of date; history is preserved rather than overwritten.