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Horizon3.ai
NodeZero autonomous pentest that exploits live networks the way an attacker would, continuously.
Proof of life. Raised $250M Series E at a $2B-plus valuation, August 2026
Horizon3's NodeZero runs production-safe autonomous pentests across internal and external networks instead of scheduling a consultancy week. Findings are chained exploit paths, not a CVE dump, so the ticket is 'this is how we get to domain admin' rather than 'patch someday'. The same engine is now sold as AI-versus-AI security as attackers start automating the same recon.
- Category
- Offensive and exposure
- Headquarters
- San Francisco, USA
- Country
- USA
- Founded
- 2019
- Funding stage
- Series E
- Total funding
- $429M
- Website
- https://horizon3.ai
Investors
NEANightDragonCraft VenturesSignalFire
Tags
Series EUSA
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