Onyx Security

Company Overview

Snapshot

Founded in June 2024 by Maxim Kogan, Gil Elbaz, and Shachak Zicher, Onyx Security operates with 11–50 employees. The company has raised a total of $153 million across three funding rounds from four investors. In July 2026, Onyx Security secured $113 million in its latest funding round.

Business overview

Onyx Security provides an AI agent security platform designed for enterprise security teams. The platform's core technology enables organizations to discover and inventory AI agents across their systems, continuously assessing how these agents access data and other systems. It allows security teams to define and enforce policies for agent behavior with real-time guardrails, while the Onyx Guardian Agent monitors runtime activities, flags excessive permissions, and blocks unsafe actions to aid incident response. The company aims to facilitate the secure adoption of agentic AI at scale for enterprises, ensuring visibility, control, and compliance in the Cyber Security sector.

Strategic signal

Onyx Security recently emerged from stealth and quickly secured significant funding, indicating strong investor confidence in its approach to AI agent security. In July 2026, the company raised $113 million, just four months after its initial public announcement. This rapid capital injection signals a belief that securing AI agents will become a major cybersecurity market, positioning Onyx Security as a key player in addressing the evolving risks associated with enterprise AI adoption.

Company Intelligence Q&A

What is Onyx Security's primary offering?

Onyx Security provides an AI agent security platform that helps enterprise security teams discover, govern, and protect all AI agents within their organization. The platform builds an inventory of agents, assesses their access to systems and data, and enforces defined policies with real-time guardrails.

When was Onyx Security founded and by whom?

Onyx Security was founded in June 2024 by co-founders Maxim Kogan, Gil Elbaz, and Shachak Zicher.

What was Onyx Security's most recent funding round?

In July 2026, Onyx Security raised $113 million in a funding round, with.

How does Onyx Security address AI agent security at runtime?

The Onyx Guardian Agent monitors AI agent behavior at runtime, flagging excessive permissions and blocking unsafe actions. This functionality assists incident response teams and ensures compliance within enterprise environments.