Horizon3 raises $250.0M Series E (United States, Aug 2026)

Horizon3 hits $2 billion valuation with $250M Series E as AI threats escalate - TechCrunch

Horizon3 is a cybersecurity startup that specializes in AI-driven security testing to identify vulnerabilities in networks. The company serves enterprises looking to enhance their security measures against increasing AI-driven threats, and has recently raised $250 million in funding to expand its operations and R&D efforts.

Horizon3 hits $2 billion valuation with $250M Series E as AI threats escalate  TechCrunch