Security Startups

ThreatLocker

Default-deny allowlisting that stops unapproved software and AI agents from running at all.

Proof of life. Raised $190M Series F led by Elephant, July 2026

About ThreatLocker

ThreatLocker inverts the EDR assumption: nothing executes unless it is on the list, then Ringfencing limits what approved apps can touch. MSPs like it because the control is blunt and the console is multi-tenant.

2026 capital is going into the same model for network, cloud, and AI agents, because a ChatGPT desktop that is not allowlisted cannot leak a file it never opened.

Investors

ElephantArthur VenturesD. E. Shaw VenturesKoch Disruptive Technologies
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