Onyx Security Raises $40 Million for AI Control Platform

As enterprises rapidly integrate autonomous systems into their operations, managing the risks associated with artificial intelligence has become a top priority. The launch of Onyx Security, focused on building a secure AI control plane, signals a new phase in how organizations govern and secure AI agents across enterprise environments.

Onyx Security has officially launched with $40 million in funding from Conviction and Cyberstarts, positioning itself to address the growing complexity of securing AI driven systems. As AI agents become embedded across departments such as engineering, operations, and customer service, enterprises are increasingly exposed to new risks tied to automation, decision making, and system access.

Unlike traditional software, AI agents operate with a degree of autonomy that introduces unpredictability. These systems can make reasoning errors, generate incorrect outputs, or be manipulated through prompt based attacks. As a result, organizations face an expanding attack surface where AI agents interact with sensitive data and critical business systems without consistent oversight.

To address these challenges, Onyx is developing a unified platform that acts as a secure AI control plane, designed to oversee and govern the behavior of autonomous agents. The platform continuously discovers AI agents within enterprise environments, monitors their reasoning processes, and evaluates their actions in real time. It can approve, block, or adjust agent behavior to ensure compliance with security and governance policies.

Maxim Bar Kogan, Co Founder and CEO of Onyx, emphasized the urgency of building new security frameworks for the AI era. “Every enterprise is becoming an agent operator — whether they planned to or not,” said Maxim Bar Kogan, Co-Founder and CEO of Onyx. “Agents are given access to the most critical systems in the enterprise, but what are our guarantees they will not make serious mistakes or get compromised? How do we decide what systems are off limits for agents, or what are the requirements to access them? The safe adoption of AI agents requires security from attacks, as well as ensuring agents don’t make critical mistakes.”

The platform is designed to serve multiple enterprise stakeholders. Security teams gain enhanced visibility, posture management, and runtime protection, while governance teams can meet compliance and regulatory requirements more effectively. Infrastructure teams benefit from improved support for AI agents and model context protocols, while executives gain insights into AI adoption and performance across the organization.

Onyx’s technology is powered by proprietary AI models and supervisory agents capable of analyzing AI reasoning and intervening in real time. This approach enables organizations to enforce policies dynamically, ensuring that AI agents operate within defined boundaries and align with enterprise objectives.

Investors backing the company see the platform as a foundational component for the future of enterprise AI. “Maxim and Gil saw the need for an AI control plane before the market did,” said Sarah Guo, Founder of Conviction Partners. “While most of the industry was still focused on data loss in chatbots, they predicted that the risk surface of agents was going to be critical. Onyx is the control plane all enterprises will need as they scale to thousands of agents.”

Hila Zigman, Partner at Cyberstarts, also highlighted the broader shift in enterprise infrastructure. “The shift of organizations toward a world in which AI systems become part of their operational infrastructure creates an entirely new attack surface,” said Hila Zigman, Partner at Cyberstarts. “These are not just software tools to be protected – they are systems that make decisions, access sensitive information, and are integrated into critical business processes. From the very first moment, it was clear to us that Maxim and Gil understand the depth of this change and are building a solution designed for the AI era, rather than trying to adapt legacy tools to a new reality. We believe the Onyx team is exceptionally well-positioned to become a market leader in AI security for large enterprises.”

Founded by Maxim Bar Kogan and Gil Elbaz, Onyx brings together expertise in cybersecurity and artificial intelligence. The company already serves several Fortune 500 customers and operates across Israel, the United States, and Canada. The newly secured funding will support product development, expansion of engineering teams, and go to market initiatives as demand for secure AI control plane solutions continues to grow.

The launch of Onyx Security underscores a broader industry shift toward governing autonomous systems at scale. As enterprises increasingly rely on AI agents, platforms that provide centralized visibility, control, and security will play a critical role in enabling safe and responsible AI adoption.

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