Onyx Security Raises $113M Series B

Onyx Security, based in New York and Tel Aviv, is an AI control company that recently secured $113 million in Series B funding. This latest round brings the company's total funding to $153 million since its founding two years ago.

Investors

The round was led by Bessemer Venture Partners, with participation from Cyberstarts, TCV, Conviction, FirstMark, Vintage, QuantumLight, and G Squared.

Onyx Security Use of Funds

Onyx Security plans to use the new capital to train the next generation of its proprietary models and scale its enterprise go-to-market operations in the United States and globally.

About Onyx Security

Founded in 2024, Onyx Security was established by Maxim Bar Kogan and Gil. The company provides a secure AI control plane designed for enterprises, allowing security, governance, and infrastructure teams to monitor, discover, and control how advanced AI agents are utilized within their environments to ensure safety and compliance.

Funding Details

Company Website: https://onyx.security

Company: Onyx Security
Raised: $113M
Round: Series B
Funding Date: July 2026
Lead Investor: Bessemer Venture Partners
Additional Investors: Cyberstarts, TCV, Conviction, FirstMark, Vintage, QuantumLight, G Squared
Company Website: https://onyx.security
Software Category: Enterprise AI Security
Source: https://www.businesswire.com/news/home/20260729713522/en/Onyx-Security-Raises-%24113M-Series-B-to-Control-Advanced-AI-Quadrupling-Revenue-since-Stealth-Launch-Four-Months-Ago