Onyx Security
About Onyx Security
Onyx Security is a Cybersecurity startup. The company reached undefined stage in undefined with a null round led by Cyberstarts. Onyx Security's investor base includes 8 institutional funds, with Bessemer Venture Partners leading the most recent equity round.
Onyx Security is an Israeli cybersecurity startup founded in 2024 by Maxim Bar Kogan (CEO) and Gil Elbaz (Chief AI Officer). Headquartered in Tel Aviv, Israel, Onyx provides a secure AI control plane designed to help enterprises deploy autonomous AI agents while maintaining full visibility, security, and governance. The platform enables security, governance, and infrastructure teams to oversee how AI agents are used, enforce compliance, and measure operational effectiveness across the enterprise. In March 2026, the company emerged from stealth with $40M in combined seed and Series A funding. By July 2026, Onyx raised a $113M Series B led by Bessemer Venture Partners — valuing the company at approximately $640M — with participation from Cyberstarts, TCV, Conviction, FirstMark Capital, Vintage Investment Partners, QuantumLight Capital, and G Squared, bringing total funding to $153M. Revenue quadrupled in the four months following the stealth launch.
Onyx Security Funding Rounds Timeline
| Round | Date | Amount | Valuation | Lead investor | Co-investors |
|---|---|---|---|---|---|
| Seed | Undisclosed | — | Cyberstarts | — | |
| Series A | Undisclosed | — | Conviction | — | |
| Series B | Undisclosed | — | Bessemer Venture Partners | Cyberstarts, TCV, Conviction, FirstMark Capital, Vintage Investment Partners, QuantumLight Capital, G Squared |
Investors in Onyx Security
8 institutional investors
Lead investors
Co-investors
Questions about Onyx Security
How much has Onyx Security raised?
Onyx Security has raised null across undefined funding rounds since undefined.
Who are the investors of Onyx Security?
Onyx Security's investors include Bessemer Venture Partners, Cyberstarts, TCV, Conviction, FirstMark Capital, Vintage Investment Partners, QuantumLight Capital, G Squared.
When was Onyx Security's last funding round?
Onyx Security's most recent round was a null Seed in undefined, led by Cyberstarts.