Oak emerges from stealth with $60M to build identity platform

Oak has emerged from stealth with $60 million in seed funding to build a unified identity security platform for human users, machine identities, and AI agents. The round was co-led by Accel, Greylock Partners, and CRV, with participation from Hetz Ventures, AlphaDrive Ventures, and several angel investors. The company said its platform is generally available and already being used by enterprise customers.

The company is positioning its Identity Operating System as a central control layer for managing access across cloud, SaaS, on-premises, and internally developed applications. Oak builds a live identity graph from data collected across those systems, giving security teams a view of which identities have access, how that access is being used, and where unnecessary permissions may create risk.

Oak also plans to govern non-human identities and AI agents throughout their lifecycle, an area that has become harder to manage as organizations deploy more service accounts, API keys, workloads, and autonomous tools. The platform compares the access assigned to an identity with the access it actually uses, then supports risk decisions and remediation based on that activity.

Oak will use the funding to expand its security and AI teams and continue developing the platform as enterprises look for a more consistent way to manage a growing mix of human and non-human access.