ThreatLocker secures $190M Series F for AI-aware zero-trust security platform

<cite index="81-1,81-2">ThreatLocker, a global leader in Zero Trust cybersecurity, has secured $190 million in Series F funding led by Elephant, with continued support from D. E. Shaw Ventures and Arthur Ventures, and a significant new investment from Koch Disruptive Technologies.</cite> <cite index="82-2">The company was previously valued at $1.6 billion, and the latest raise has significantly increased that valuation.</cite> ThreatLocker has now raised nearly $500 million across six funding rounds since launch.

<cite index="81-2">The capital will support continued development of the company's existing controls for AI-related security risks, further improvements to its Zero Trust Platform, and international expansion, beginning with the opening of a Reading, U.K. office.</cite> <cite index="88-2">The company's platform uses application allowlisting and access controls to limit what software, users and devices can do across customer environments. ThreatLocker is extending that approach to AI agents, AI-generated code, and unauthorized AI tools.</cite> <cite index="81-3">ThreatLocker has ranked among the fastest-growing private companies in America on the Inc. 5000 for two consecutive years.</cite>

<cite index="87-2,87-3">The funding signals that investors view AI-enabled zero-trust security as a defensible, high-growth SaaS niche. The zero-trust market, once dominated by complex, on-premise solutions, is now maturing into a subscription-driven ecosystem where ease of deployment and AI-enhanced controls are decisive differentiators.</cite> For practitioners: ThreatLocker's focus on AI-agent governance—allowlisting trusted tools and ringfencing what agents can access—reflects the emerging threat landscape where AI-generated code and autonomous agents demand new policy layers beyond traditional endpoint controls.