Zenity Raises $125M Series C to Secure AI Agents Across Enterprise Systems

Quick Facts

  • Zenity raised $125M in Series C funding led by Norwest Venture Partners, with participation from SoftBank Vision Fund 2, Qumra Capital, Hitachi Ventures, and LG Technology Ventures.
  • The company has tripled revenue in each of the past two years and is on track to triple again in 2026.
  • Zenity’s platform secures AI agents across Microsoft Copilot, ChatGPT Enterprise, Google Gemini, Claude, AWS Bedrock, and other major frameworks.

Zenity Ltd. closed a $125 million Series C round on Aug. 3, pushing its total funding to approximately $185 million. The Tel Aviv and New York-based company builds security and governance software for autonomous AI agents deployed inside large enterprises.

Norwest Venture Partners led the round. New investors include Qumra Capital, SoftBank Vision Fund 2, Hitachi Ventures, and LG Technology Ventures. Existing backers DTCP, Vertex Ventures, Third Point Ventures, and Intel Capital also participated. The round includes a roughly $10 million secondary component that lets some employees and founders sell shares. Zenity did not disclose a valuation.

The company was founded in 2021 by Ben Kliger, CEO, and Michael Bargury, CTO, both veterans of Unit 8200, the Israeli Defense Forces intelligence unit. Before starting Zenity, the pair worked together at Microsoft leading development of cloud and operational technology security products. Zenity now employs more than 230 people, with around 150 based in Israel.

The core problem Zenity addresses is distinct from earlier AI security approaches. Traditional tools focused on protecting AI models or inspecting prompts. Autonomous agents are different: they access enterprise systems, invoke tools, and execute business processes without human approval at each step. That creates a new class of attack surface.

Zenity’s platform sits between an agent and the enterprise systems it operates on. It reads the intent behind each agent action before execution, then allows security teams to approve, modify, or block that action in real time. The system covers agents built on Microsoft Copilot, ChatGPT Enterprise, Google Gemini, Claude, AWS Bedrock, AgentCore, Microsoft Foundry, and Google Vertex AI.

‘Enterprise AI is skyrocketing,’ Kliger said. ‘AI experimentation is long over and any organization on the planet is promoting AI agents at velocity and adoption rates never seen before in any tech wave.’

The company’s research arm, Zenity Labs, has produced findings that directly inform the product. At Black Hat USA 2025, Zenity Labs revealed AgentFlayer, a set of zero-click exploit chains that allow attackers to silently hijack enterprise AI agents without any user interaction. Working exploits were demonstrated against OpenAI ChatGPT, Microsoft Copilot Studio, Salesforce Einstein, Google Gemini, Microsoft 365 Copilot, and the developer tool Cursor.

‘We demonstrated memory persistence and how attackers can silently hijack AI agents to exfiltrate sensitive data, impersonate users, manipulate critical workflows, and move across enterprise systems, bypassing the human entirely,’ Bargury said.

Zenity’s customer base spans Fortune 500 and Global 2000 companies across healthcare, financial services, pharmaceuticals, manufacturing, and technology. SoftBank Corp., whose CISO Tadashi Iida participated in the funding announcement, is both an investor and a customer. ‘Zenity enables us to confidently deploy AI agents across the enterprise, giving us the visibility and governance required to support innovation at scale,’ Iida said.

Assaf Harel, partner at Norwest, cited Zenity’s early position in the market. ‘Zenity has an early mover advantage in building an end-to-end AI agent security and the largest and rapidly growing footprint of successful implementation across Fortune 1000 customers,’ he said.

Gartner earlier this year described Zenity as ‘the company to beat in AI agent governance.’ Kliger noted that adoption is accelerating in Asia-Pacific, particularly in Japan, South Korea, Singapore, and Australia, faster than prior waves of AI security adoption.

The new capital will fund continued platform expansion and go-to-market growth as enterprises push autonomous agents deeper into production workflows.

Read more: Israeli startup Zenity bags $125M in funding to build the security layer for AI agents

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