Horizon3.ai
Agent47 out of 100, Above median. Agent Readiness. Open the scores section.Agent Readiness: 47/100. Above median. Measured by StartupHub.ai. Median 41.Trust85 out of 100, Top 25%. Data Trust. Open the scores section.Data Trust: 85/100. Top 25%. Measured by StartupHub.ai. Median 61.Autonomous penetration testing platform that continuously identifies and fixes exploitable security vulnerabilities at scale.
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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.
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Key facts
- Website
- horizon3.ai
- Headquarters
- San Francisco, United States
- Founded
- 2019
- Total funding
- $410M (Funding Round)
- Business model
- B2B
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 29 Oct 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
- Video / media
- Vimeo
- Affiliate program
- Self-hosted affiliate
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Frequently asked
Is Horizon3.ai trustworthy and reputable?
StartupHub's Data Trust & Reputation score for Horizon3.ai is 85 out of 100, a trusted rating, based on site security posture, privacy practices, malware and phishing checks, and public reputation signals.
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.
Does Horizon3.ai have an affiliate program?
Yes, Horizon3.ai has an affiliate program. The program runs on Self-hosted affiliate. Register here: www.horizon3.ai/affiliates
A tool we built
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SEC filings, insider activity, nonprofit links and pay benchmarks for Horizon3.ai:
Company details: from public sources. Funding: no announced round on file. Ownership: not yet claimed by the company. Scores: measured by named tools; each links to its method. Our rules
