Horizon3
Horizon3.ai provides autonomous penetration testing through its NodeZero platform, which continuously finds, prioritizes, and verifies exploitable security weaknesses.
Secondary Market Price
Secondary Market Price
How Horizon3 Measures Up
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Prospect Rating
TBD
We are still gathering data to complete our evaluation of Horizon3. Check back soon for our rating on the company's projected worth four years from now.
Exit Risk
TBD
We are still gathering data on Horizon3 to train our machine learning model. Check back soon for our exit risk rating for Horizon3!
Funding Stage
Series D
Since Horizon3 has reached a Series D funding stage, it means they are a well-established company with a proven track record. This suggests more stability and structure than you'd find at an earlier-stage startup, with a focus on expanding what already works.
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Prospect Projected Future Horizon3 Prices
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Company Description
Horizon3.ai is a cybersecurity company that provides an autonomous security platform called NodeZero. The platform is designed to continuously find, fix, and verify exploitable vulnerabilities across an organization's internal, external, and cloud-based attack surfaces. It performs automated penetration tests that simulate real-world adversary behaviors to provide security teams with prioritized remediation guidance. The company was founded in 2019 by a group of former U.S. Special Operations cyber operators and cybersecurity practitioners to address issues they identified with conventional security tools, including alert fatigue and operational blind spots. Horizon3.ai is headquartered in San Francisco, California, with an additional office in Durham, North Carolina.
In June 2025, the company secured a $100 million Series D funding round, which brought its total funding to $183 million and its last-round valuation to $750 million. A significant recent development is the achievement of FedRAMP® High authorization for its NodeZero Federal™ platform, which permits its use by U.S. federal government customers. The company has also expanded its product capabilities with features like Endpoint Security Effectiveness, which monitors endpoint detection and response (EDR) systems, and Active Directory Tripwires, which are decoy accounts designed for early detection of credential theft. As an example of its application, the software company Dynatrace uses NodeZero for continuous security validation and to detect identity abuse within its Active Directory environment.
- NEA
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- Okta Ventures
- Co-Founder, CEO Snehal Antani
- Co-Founder, CTO Anthony (Tony) Pillitiere
Peer Group Comparison
Vs Peer Group of >$4B Startups
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