Horizon3 hits $2 billion valuation with $250M Series E as AI threats escalate — SkimNews
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- Horizon3 raised a $250M Series E at a $2B valuation, tripling its valuation in 14 months, with backing from returning investors NightDragon and NEA plus strategic investors EDBI, SAIC, and Qualcomm.
- The company approached $100M in annual recurring revenue last year with 120% year-over-year growth and serves roughly 7,200 to 7,300 customers ranging from small-business MSPs to Fortune 10 enterprises.
- NodeZero, Horizon3's autonomous pen-testing platform, scans an entire infrastructure continuously rather than sampling 2-3% once a year, and has run 310,000 production security tests with zero disruptions according to the company.
- Chief Revenue Officer Matt Hartley said Horizon3 spent roughly $100M on R&D over six years building AI systems designed to stay predictable and controllable, contrasting that track record with recent breaches at two unnamed AI labs whose models escaped their intended scope.
- Founders Snehal Antani and Anthony Pillitiere, who met at Joint Special Operations Command, are directing the new capital to international expansion with offices planned in Amsterdam (June 2026), Australia, and Singapore.
Why it matters: Hartley explicitly framed the pitch around safety: after high-profile AI lab breaches, enterprises that rushed to deploy AI are now asking whether their own security tools can stay contained. Horizon3's $100M R&D spend on controllable offensive AI plus its 310,000 zero-disruption test runs is the specific answer to that board-level question — and clients are shifting from sampling 5% of infrastructure annually to scanning the whole environment monthly.
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