Bay, an AI security company developing a trust layer for enterprises that rely on autonomous agents, has come out of stealth with $50m in total funding, under a year after it was founded.
The $50m includes a $37m Series A led by Battery Ventures, along with a $13m seed round that had not been announced before. YL Ventures and Striker Venture Partners led the seed. Micron Ventures, M12, Microsoft’s Venture Fund and Wiz CEO Assaf Rappaport also invested in the Series A.
The company’s origins come from an incident its founders saw first-hand. One of their own coding agents tried to make a cloud environment publicly reachable on the internet so it could finish a test. Nobody had hijacked the agent. It had valid permissions and a valid objective, but it chose a hazardous route to reach that objective.
Bay says it can put AI governance and enforcement in place across employee devices, cloud systems and SaaS tools within five minutes. It doesn’t need an extra persistent endpoint agent, a kernel driver or a network proxy to do this. One platform applies a single policy set to many AI use cases. It combines AI discovery, posture management, session-level visibility and real-time enforcement, and it plugs into existing security workflows so problems can be fixed automatically.
Each action an agent proposes is judged against the whole session. Bay then decides locally, within milliseconds, whether to allow it. Security teams don’t have to write rules for every new agent or tool, because the platform learns from how agents behave inside the organisation.
This lets it tell apart actions that look the same on their own but carry very different levels of risk. As companies add agents and workflows, Bay adjusts its policies and widens the range of tasks agents can complete without supervision. It supports whichever AI models, assistants and agent frameworks a customer chooses.
Yuval Zacharia, who is CEO, set up the company with CPO Aner Morag and VP of R&D Boris Danilovich. Zacharia started out at Israel’s Unit 8200, where she ran a 50-person department. She then became the first intelligence officer to move into offensive cybersecurity and joined the unit’s top department.
She later worked at Hunters as director of research and AI. Danilovich ran a 90-engineer department at CrowdStrike, where he oversaw a central part of its endpoint security platform and helped lead its Israeli R&D centre. Morag was one of the first hires at Noname Security and became its VP of product as the business grew.
Bay is now available to enterprises. It plans to use the new capital to grow its product and engineering teams and to expand its sales, marketing and customer functions in the US and Europe.
Bay co-founder and CEO Yuval Zacharia said, “If you’re a security leader at an enterprise today, you’re likely facing one of two realities: either AI agents have already spread across your organization and it’s the Wild West, or your leadership has mandated an enterprise-wide AI rollout by the end of the year to accelerate the business.
“Either way, the challenge is the same: enabling AI adoption at scale without losing control. Bay was built to be the one platform that secures every way the enterprise uses AI, so security becomes the reason AI ships faster, not the reason it stalls.”
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Copyright © 2026 RegTech Analyst
Copyright © 2026 RegTech Analyst
