As enterprises race to deploy AI agents at scale, Zenity's US$125 million Series C signals where the security industry is placing its bets.
For years, enterprise AI security focused on two layers: the model and the prompt. That framing is no longer sufficient. AI agents can access critical systems, invoke tools, make decisions and take action on their own, which means the risk surface has moved well beyond anything a prompt filter can catch. Most of the security industry is only now beginning to grapple with what that shift requires.
Zenity was addressing this problem years ahead of that curve. Founded in 2021 by Ben Kliger and Michael Bargury, the company built a platform that governs AI agents by understanding their intent, allowing, modifying or blocking actions before they occur, rather than analysing incidents after the fact. That approach has translated into rapid commercial traction: Zenity has tripled its revenue in each of the past two years and counts a large share of Fortune 500 and Global 2000 companies among its customers.
"As we enter the era of 1 billion agents, our newly announced funding is helping make that vision a reality. This investment allows us to bring AI agent security to many more organisations around the world," said Ben Kliger, co-founder and CEO of Zenity.
The Series C, led by Norwest with participation from Qumra Capital, SoftBank Vision Fund 2, Hitachi Ventures and LG Technology Ventures, brings Zenity's total funding to US$185 million. It arrives as enterprises move from experimenting with agentic AI to deploying it across core infrastructure, from Microsoft Copilot and ChatGPT Enterprise to custom systems built on AWS Bedrock and Microsoft Foundry, and as governance and control become as important to that shift as the underlying capability itself.
Vertex's perspective
Vertex Ventures Israel has backed Zenity since its Series A. "Zenity was an early mover in AI agent security, well before most of the industry had even defined the problem," said Yanai Oron, General Partner, Vertex Ventures Israel. "This round reflects the company's leadership in revenue, the calibre of its customers, and the team's ability to stay ahead of the rapid adoption of new enterprise agents and protect them at scale."
As agentic AI becomes embedded across enterprise infrastructure, the companies that can govern it safely, rather than simply build it, are likely to define the next phase of enterprise security. Zenity's latest round positions it to do exactly that.
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