Praetorian
Find the breach point before the compromise finds you
140 employees · est. 2010 · Austin, United States
Praetorian is the older company (2019 vs 2010); Horizon3.ai is the larger of the two.
Side-by-Side Comparison
| Metric | Horizon3.ai | Praetorian |
|---|---|---|
| Founded | ||
| Founded | 2019 | 2010 older |
| Headquarters | ||
| Headquarters | San Francisco, United States | Austin, United States |
| Employees | ||
| Employees | 498 larger | 140 |
| Industry | ||
| Industry | AI, Cyber Security, Enterprise Software | Cloud Infrastructure, Cyber Security, Enterprise Software |
| Funding Stage | ||
| Funding Stage | Unknown | Series A |
| Total Funding | ||
| Total Funding | $187.00M | $10.00M |
| Funding Rounds | ||
| Funding Rounds | 7 | 1 |
| Services | ||
| Services | Autonomous Pentesting, Vulnerability Management, Threat Detection & Response, AI-Powered Security Solutions, Security Control Validation | Praetorian Guard Platform, Continuous Threat Exposure Management, Penetration Testing Services, Red Team Exercises, Purple Team Engagement, Attack Path Mapping |
| Target Customers | ||
| Target Customers | Security Teams, IT Operations (ITOps) Teams, SecOps Teams, Pentesters, Large Organizations, MSSPs and MSPs, Healthcare Providers, Financial Services | 21st Century Fox, Cushman & Wakefield, Bookings Holdings, Samsung, Zoom, Healthcare Sector, Mergers and Acquisitions |
| Taxonomy | ||
| Taxonomy | AI-Native Security, Proactive Security, Autonomous Penetration Testing, Security Posture Assessment, Attack Surface Management, AI-Powered Cybersecurity, Exploit Detection, Security Verification, Threat Modeling, Cyber Defense Optimization, Vulnerability Management, Cloud Security, IoT Security, Offensive Security, Machine Speed Testing | Adversarial Testing, Offensive Security, Continuous Offensive Operations, Attack Path Mapping, IoT Security, Cloud Security, Network Security, Application Security, Penetration Testing, Security Assessments, Red Team, DevSecOps, Attack Surface Management, Vulnerability Management, Threat Intelligence |
| Website | ||
| Website | horizon3.ai | praetorian.com |
About Horizon3.ai
Horizon3.ai, founded in 2019, is at the forefront of the cybersecurity industry, specializing in AI-Native Proactive Security. The company's standout product, NodeZero®, serves as an autonomous cybersecurity assessment platform designed to combat the increasing sophistication of AI-powered attacks....
About Praetorian
Praetorian, founded in 2010 and headquartered in the United States, is a potent player in the Cloud Infrastructure, Cyber Security, Enterprise Software, and Privacy and Security industries. The company's slogan, "Find the breach point before the compromise finds you," succinctly captures its mission...
We will tell you when either one moves
BounceWatch watches Horizon3.ai and Praetorian for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Horizon3.ai and Praetorian — by email.
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Compiled from the BounceWatch company index. We last looked at Horizon3.ai on 16 Jul 2026, and Praetorian on 31 Mar 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.