Horizon3.ai

Horizon3.ai is a cybersecurity company that has developed NodeZero, an autonomous penetration testing platform designed to help organizations continuously identify, remediate, and verify exploitable vulnerabilities across their attack surface. The platform operates without human intervention, dynamically traversing networks to chain together exposures in the same manner as real-world adversaries, enabling security teams to move beyond periodic scanning toward continuous threat exposure management. Founded with a mission to democratize offensive security capabilities, Horizon3.ai serves a diverse range of industries including financial services, healthcare, manufacturing, education, and the US public sector through its NodeZero Federal offering. The company has established partnerships with the NSA to help secure the Defense Industrial Base and has conducted over 170,000 production-safe penetration tests. Their platform encompasses internal, external, cloud, and Kubernetes pentesting capabilities, along with Active Directory password auditing, phishing impact testing, and rapid response to CISA Known Exploited Vulnerabilities. Horizon3.ai differentiates itself through its comprehensive approach to vulnerability management, combining autonomous pentesting with integrated threat detection via NodeZero Tripwires, zero-day alerting through Rapid Response, and unified risk reporting through NodeZero Insights. The platform is designed to help organizations of all sizes—from large enterprises to MSSPs and MSPs—validate security controls, assess third-party risk, and demonstrate compliance with frameworks including PCI and NIS 2.