Source: Unite.AI
Bay announced on November 10, 2026, that it had raised a $37 million Series A led by Battery Ventures, bringing total funding to $50 million as the Tel Aviv-based startup emerged from stealth with a platform designed to control what enterprise AI agents can do.
The total combines the new Series A with a previously undisclosed $13 million seed round co-led by YL Ventures and Striker. Micron Ventures, Microsoft’s M12 venture fund and Wiz CEO Assaf Rappaport also participated in the Series A. The platform is available to enterprises.
Session Context Shapes Enforcement
Bay’s founding problem was an authorized agent taking a dangerous route to a legitimate goal. The founders watched a coding agent attempt to expose a cloud environment to the internet while completing a test; the agent had not been compromised and was using legitimate permissions. That distinction shapes a product that assesses whether an action is safe in context, beyond whether the agent has permission to attempt it. Co-founder and CEO Yuval Zacharia described the objective as “enabling AI adoption at scale without losing control.”
Bay says its platform evaluates each proposed action in the context of the full agent session and decides locally in milliseconds whether it can proceed. It learns from an organization’s agent activity and interprets real-time context, allowing it to distinguish actions that look identical in isolation but carry different risks. The policies adapt as teams add agents and workflows, and the platform works across the models, assistants and agent frameworks the organization chooses.
The platform combines AI discovery and posture management, session-level observability and real-time enforcement, with connections to existing security workflows for automated remediation. Bay says deployment across employee devices, cloud infrastructure and SaaS applications takes under five minutes and requires no additional persistent endpoint agent, kernel driver or network proxy.
Early Customers and Founding Team
Bay reports that it has dozens of enterprise customers at launch, including Micron, Peloton, ClickUp and Wix, and that Fortune 100 companies used its platform to triple autonomous AI agent use. Micron is also an investor through Micron Ventures. Andrew Byrnes, Micron’s director of venture capital, said the company had seen firsthand how Bay’s technology could accelerate AI adoption while preserving the control and accountability required by a large enterprise.
Zacharia founded Bay with chief product officer Aner Morag and research-and-development vice president Boris Danilovich. She previously led a 50-person department in Israel’s Unit 8200 and later served as director of research and AI at Hunters. Danilovich previously led a 90-engineer department at CrowdStrike, while Morag joined Noname Security as an early employee and became vice president of product.
Funding Targets US and European Expansion
Bay plans to use the funding to expand its product and engineering teams and grow sales, marketing and customer teams in the United States and Europe. Battery Ventures general partner Dharmesh Thakker said the decision to lead the round reflected Bay’s technical approach and early enterprise customer wins.
The round gives Bay resources to expand, while its central challenge remains demonstrating that session-level enforcement can support wider agent autonomy without multiplying the rules security teams must maintain.
