Credit Card Management for multiple entities

We have approximately 40 separate entities that may or may not use credit cards.   

Is anyone using CC Management in that type of environment?  If so, are you setting up a separate Credit Card "Bank" for each entity? 

Would it make more sense to set up a "Credit Card Company"?  Posting expenses via intercompany and then the payments would clear the intercompany.

We are using Sage 300 CRE 14.1 Update 3.