Horizon3.ai
Autonomous penetration testing platform that continuously identifies and fixes exploitable security vulnerabilities at scale.
About
Horizon3.ai offers the NodeZero platform, an autonomous pentesting solution that simulates real-world attacker behaviors to identify and validate security weaknesses. It provides continuous attack validation across infrastructure, cloud, and SaaS environments, serving ITOps, SecOps, and security teams. The platform supports various use cases including internal and external pentesting, Kubernetes and cloud security, and Active Directory vulnerability management.
Key facts
- Website
- horizon3.ai
- Headquarters
- San Francisco, United States
- Founded
- 2019
- Total funding
- $410M (Funding Round)
- Valuation
- Private
- Business model
- B2B
- Tags
- AISaaSCybersecurity
Funding rounds
| Date | Round | Amount | Post-money | Lead investors |
|---|---|---|---|---|
| 5 Aug 2026 | Funding Round | $20M | - | - |
| 3 Aug 2026 | Series E | $250M | $2.0B | - |
| 10 Jun 2025 | Series D | $100M | $750M | NEA, New Enterprise Associates Inc. |
| 1 Aug 2023 | Series C | $40M | - | Craft Ventures |
Tech stack
Detected on horizon3.ai, last scanned 18 Sept 2026. Run your own scan
- Frontend
- jQuery
- Analytics
- Google Tag Manager
- Support
- Zendesk
- CMS / Builders
- WordPress
- CDN
- Cloudflare
- Email provider
- Mimecast
- Email marketing
- Salesforce Pardot
- Booking / scheduling
- Chili Piper
Frequently asked
How much funding has Horizon3.ai raised?
Horizon3.ai has raised a total of $410M in funding. The most recent round on record is Funding Round.