Bay raises $37 million Series A for enterprise AI agent security
The AMW Read
The funding updates a security provider in the agent ecosystem, while its customer and performance claims remain company-reported.
Bay raises $37 million Series A for enterprise AI agent security
Bay emerged from stealth with a $37 million Series A led by Battery Ventures, bringing its total funding to $50 million. The total includes a previously undisclosed $13 million seed round co-led by YL Ventures and Striker. Micron Ventures, Microsoft's M12 fund and Wiz CEO Assaf Rappaport also participated in the Series A. Bay says its platform is available to enterprises and that it has dozens of customers, including Micron, Peloton, ClickUp and Wix.
The funding adds a security-focused company to the enterprise AI agent market. Bay's approach addresses a problem that arises when an authorized agent takes a risky action while pursuing a legitimate task. The company says its platform evaluates proposed actions against the full session context, then decides locally in milliseconds whether they can proceed. It combines agent discovery, session observability and real-time enforcement across models, assistants and agent frameworks. Bay says Fortune 100 customers used the platform to triple autonomous agent use, but the source does not provide details of that measure.
For enterprise builders, the practical question is whether session-level enforcement can prevent unsafe actions without blocking useful work. Bay says deployment takes under five minutes across employee devices, cloud infrastructure and SaaS applications, without an additional persistent endpoint agent, kernel driver or network proxy. Investors can assess those claims alongside customer retention and independent evidence of enforcement as Bay expands its engineering and commercial teams in the United States and Europe.
