Onyx Security Raises $40 Million to Enhance AI Agent Security

Onyx Security, a Tel Aviv-based cybersecurity startup, has announced a $40 million funding round dated March 12, 2026. The round was led by Conviction, with participation from Cyberstarts. The company, co-founded by Gil Elbaz, Chief AI Officer, and Maxim Bar Kogan, CEO, focuses on overseeing the use of AI agents within enterprises, ensuring they are secure and compliant, and measuring their effectiveness.

Addressing Security Challenges in AI

As enterprises increasingly deploy autonomous AI agents across various departments, from engineering to customer service, new challenges emerge. These agents are designed to automate tasks and make independent decisions, but they also introduce potential security and operational risks. Onyx Security aims to mitigate these risks by providing a secure AI control plane. This platform discovers and monitors AI agents within an organization, managing their actions in real-time to maintain governance, security, and compliance.

Maxim Bar Kogan highlighted the growing importance of securing AI agents, stating: "Every enterprise is becoming an agent operator โ€” whether they planned to or not." With AI agents gaining access to critical enterprise systems, the need for security measures to prevent errors or malicious activities is paramount.

Platform Capabilities

Onyx Security's platform serves as a centralized solution for security, governance, and infrastructure teams. It offers tools for security teams to manage AI agent operations and provides mechanisms for governance teams to enforce compliance with regulatory and internal policies. Additionally, infrastructure teams can optimize agent deployments, focusing on performance metrics like cost, accuracy, and latency.

The platform utilizes proprietary AI models to observe and intervene in the decision-making processes of AI agents, ensuring that autonomous actions align with organizational goals and safety standards.

Use of Funds

The newly raised capital will be directed towards expanding Onyx Security's product and engineering teams. This expansion is crucial for enhancing the platform's capabilities and supporting its growing client base, which already includes several Fortune 500 companies. The company has over 70 employees working across Israel, the United States, and Canada.

Conclusion

Onyx Security's emergence from stealth mode with significant financial backing underscores the increasing demand for solutions that secure and govern the use of AI agents in enterprises. As AI technology continues to evolve, the company's platform positions itself as a vital tool for organizations looking to safely integrate AI agents into their workflows.