Knostic is an enterprise AI-security company founded in 2023 and headquartered in Herndon, Virginia, that builds access controls specifically for large language model assistants like Microsoft Copilot, Glean, and Gemini.
Rather than relying on document-level permissions alone, Knostic applies knowledge-layer policies at request time, evaluating what an AI assistant is about to surface and blocking responses that would overshare information the requesting user doesn't have a need-to-know basis for; it also produces audit logs documenting who accessed what data through which AI system. The company has raised roughly $14 million and won both the RSA Conference 2024 Launch Pad and Black Hat 2024 Startup Spotlight competitions.
Knostic fits enterprise security and IT governance teams rolling out AI assistants across a workforce with mixed data-access levels, rather than small teams without formal access-control needs. Pricing is enterprise-only and quoted per contract; a public AWS Marketplace listing shows a baseline around $50,000 per annual contract tier, though direct sales pricing may differ.
