Microsoft 365 tenant name lookup

Look up an organization’s name and primary domain from its Microsoft 365 / Entra / Azure tenant ID using our free tool. You can also find a tenant ID from an organization’s domain name.

What is a tenant ID?

A tenant ID is a globally-unique identifier for a Microsoft Entra (Azure AD / Microsoft 365) organization. The tenant ID is used by Microsoft identity endpoints and applications to target a specific organization and directory.

No registration or email required. We don't save any information from this tool.