Horizon3.ai

Horizon3.ai builds NodeZero, an autonomous, agentless penetration testing and Adversarial Exposure Validation platform that runs continuous attack simulations across enterprise networks, cloud environments, and Active Directory to produce proof-based evidence of exploitable weaknesses. NodeZero serves more than 5,200 organizations and underpins the NSA Continuous Autonomous Penetration Testing (CAPT) program. Its NodeZero Federal offering holds FedRAMP High authorization and achieved Tradewinds Awardable status in 2026.