# Onyx Security Raises $113M Series B at ~$640M Valuation

On July 29, 2026, per Onyx Security, AI and ML system security company Onyx Security raised $113M in a Series B led by Bessemer with Cyberstarts and TCV; third-party databases report a valuation of about $640M. The company was founded by Maxim Bar Kogan and others, who now serves as CEO.



Canonical: https://uniquebase.ai/news/473f017b-0d2e-4296-a61d-e673faa84446
Stable identifier: 473f017b-0d2e-4296-a61d-e673faa84446
Snapshot captured: 2026-10-20T18:19:32.670Z
English updated: 2026-10-20T18:21:32.462Z

## Connected profiles

- [Bessemer](/institutions/bessemer)
- [Cyberstarts](/institutions/cyberstarts)
- [Onyx Security](/companies/onyx-security)
- [TCV](/institutions/tcv)

## Sources

- https://www.onyx.security/press-release/onyx-security-raises-113m-series-b-to-control-advanced-ai-qu