San Francisco, United States
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. Engineered by experienced U.S. cyber veterans, the platform has successfully executed over 225,000 production-safe tests.
The U.S.-based firm has garnered trust from over 5,000 organizations, including the NSA and CISA, by enabling them to proactively test and enhance their cybersecurity defenses. Recognized as one of the World’s Most Innovative Companies by Fast Company, Horizon3.ai achieved notable milestones such as ranking #3 on the 2025 Deloitte Technology Fast 500 and #1 in cybersecurity on the Inc. 5000 in 2025.
The company's last major investment round occurred in early 2026, backed by Prosperity7 Ventures, positioning Horizon3.ai for further growth and intensifying its impact in AI, Cyber Security, and Enterprise Software markets.
