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docs/core-functionality/tenancy.md

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+# Tenants
+
+A tenant represents a discrete entity for administrative purposes. Typically, tenants are used to represent individual customers or internal departments within an organization. The following objects can be assigned to tenants:
+
+* Sites
+* Racks
+* Rack reservations
+* Devices
+* VRFs
+* Prefixes
+* IP addresses
+* VLANs
+* Circuits
+* Virtual machines
+
+If a prefix or IP address is not assigned to a tenant, it will appear to inherit the tenant to which its parent VRF is assigned, if any.
+
+### Tenant Groups
+
+Tenants can be organized by custom groups. For instance, you might create one group called "Customers" and one called "Acquisitions." The assignment of tenants to groups is optional.