Onyx Security

Onyx Security is a cybersecurity startup dedicated to accelerating enterprise AI adoption securely. The firm specializes in developing a secure AI control plane that enables organizations to oversee, manage, and govern autonomous AI agents at scale. Their platform provides continuous discovery and monitoring of AI agents, intervening to approve or correct actions in real-time to ensure compliance with security and governance policies. This innovative approach addresses the emerging operational risks and expanding attack surface introduced by increasingly autonomous AI systems within enterprise environments.

Founded in 2024 by Maxim Bar Kogan, who serves as Co-Founder and CEO, and Gil Elbaz, Co-Founder and Chief AI Officer, Onyx Security emerged from stealth mode in March 2026 with significant funding. Bar Kogan brings a strong background in cybersecurity and technology executive leadership, including experience from Unit 8200 of the Israeli Defense Forces (IDF). Elbaz is a veteran AI researcher, having previously led agentic AI work at Nvidia and also served in an IDF AI research unit. Their combined expertise was instrumental in identifying the critical need for a robust control layer to manage the unpredictable nature of AI agents and prevent potential errors, misuse, or security breaches.

As a startup, Onyx Security itself has attracted notable investments, having raised a total of $40 million in funding. This includes a $5 million Seed round from Cyberstarts in 2024 and a $35 million Series A round led by Conviction in March 2026. While not an investment firm in the traditional sense, this funding underscores investor confidence in their mission to secure the agentic era of AI. The company is already collaborating with multiple Fortune 500 companies, demonstrating the market's demand for their secure AI control plane.

The team at Onyx Security comprises over 70 employees, a diverse group of experts in both cybersecurity and artificial intelligence. Maxim Bar Kogan's leadership is rooted in his extensive experience at the intersection of AI and offensive cyber. Gil Elbaz's deep understanding of AI architecture and agentic systems, honed at Nvidia and through his military service, complements Kogan's expertise. Together, their multidisciplinary backgrounds provide the foundational knowledge and strategic vision necessary to tackle the complex challenges of AI security and governance for large enterprises.