Onyx Security
A New York AI-agent control plane with a Series B and an Anthropic integration.
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Onyx Security, founded in 2024 and based in New York, offers a control plane for managing permissions, monitoring activity, and preventing risk as enterprises deploy autonomous AI agents at scale, focusing specifically on governing what agents may do and monitoring their behavior in production. It has integrated with Anthropic for enterprise AI adoption.
It raised a Series B and reports real revenue growth.
Innovation Matrix Assessment
Quadrupled revenue in four months post-stealth and shipped an Anthropic integration, indicating rapid product iteration and adoption.
Still early in enterprise deployment maturity despite fast growth; operational track record is short.
Raised a $113M Series B in July 2026 at a $640M valuation led by Bessemer, just two years after founding, with an Anthropic partnership announced in June 2026.
AI agent permissioning and control is a newly emerging category directly created by the shift to agentic enterprise software.
Efficacy claims are largely self-reported growth metrics; no independent red-team or benchmark data was found.
Controlling autonomous AI agent behavior is becoming a top-tier enterprise security priority as agentic AI adoption scales.
Why CISOs Should Care
Onyx gives CISOs a control plane to manage permissions, monitor activity, and prevent risk as enterprises deploy autonomous AI agents at scale -- an increasingly urgent need as agentic AI adoption accelerates.
What Makes It Different
Onyx focuses specifically on the AI control problem -- governing what autonomous agents are permitted to do and monitoring their behavior in production -- rather than general cloud or identity security, and has already integrated with Anthropic for enterprise AI adoption.
The Matrix Verdict
62/100 — INCREMENTAL INNOVATOR
A fast-scaling, well-capitalized leader in the emerging AI agent control/governance category, with real revenue growth and a marquee integration partner (Anthropic).
Editorial Note: Claims vs. Verified Findings
Company-reported quadrupled revenue since a stealth launch four months prior is a self-disclosed growth figure.
Sources
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