Boston- and Tel Aviv-based Zenity has closed a $125 million Series C led by Norwest Venture Partners, extending the AI agent security specialist's total funding to about $185 million as enterprises rush to deploy autonomous agents across critical business systems.
New investors join a strategic-heavy round
Announced August 3, 2026 from New York, the round brought in new investors Qumra Capital, SoftBank Vision Fund 2, Hitachi Ventures and LG Technology Ventures alongside returning backers Vertex Ventures, Third Point Ventures, DTCP and Intel Capital. Zenity co-founder and CEO Ben Kliger framed the raise around what he called "the era of 1 billion agents," saying "AI experimentation is long over" as enterprises rebuild infrastructure around agentic AI across SaaS, coding agents and public cloud.
Beyond model and prompt security
Zenity's platform sits outside the traditional model-layer and prompt-inspection paradigms that dominated the first wave of AI security. Instead it enforces runtime boundaries by understanding an agent's intent and deterministically allowing, modifying or blocking actions before they execute. That approach spans Microsoft Copilot, ChatGPT Enterprise, Claude Enterprise, Gemini, Cursor and Codex-style coding agents, plus custom agentic systems on AWS Bedrock, AgentCore, Microsoft Foundry and Google Vertex AI.
The pitch is landing at scale: Zenity says it has tripled revenue in each of the past two years and is on track to do so again, with a customer base weighted toward Fortune 500, Global 2000 and Fortune 50 organizations across financial services, healthcare, pharmaceuticals and manufacturing. SoftBank Corp CISO Tadashi Iida is quoted in the release confirming its use of Zenity to deploy agents at scale.
From AgentForger to a governance category
Zenity Labs, the company's research arm, has produced a steady stream of headline-grabbing disclosures — including its AgentForger vulnerability in ChatGPT workspace agents, the AgentFlayer zero-click agent-hijack class and demonstrations that hijack Perplexity's Comet browser via a poisoned calendar invite. Combined with Gartner naming Zenity "the company to beat in AI agent governance" in April, the fundraise cements the startup at the front of a crowded pack that includes Hush Security, Mate Security and Okta's newly acquired Permiso.
Zenity now employs more than 230 people worldwide, with R&D in Tel Aviv and go-to-market from New York. The proceeds will accelerate platform work, expand Zenity Labs and deepen the company's footprint across Europe and Asia Pacific.
Reporting based on coverage from Zenity, CTech and HPCwire.