Multi-Tenancy where in every tenant has their own Active Directory

I am designing a Service Provider environment where in every client (tenant) has his own Active Directory server to be integrated with ManageIQ for authentication. Is this a supported configuration?

Authentication is handled on each appliance individually, so you could just have multiple appliances.

You probably want to dig into the CloudForms documentation on how exactly Regions and Tenants work in CloudForms/ManageIQ