@springwater 

One QBO account is for one company file. You may manage branches/divisions by utilizing the Class/Location feature available in QBO Plus. Otherwise you should open a new account.

https://quickbooks.grsm.io/EU

https://quickbooks.grsm.io/North-America

Another option, consider using QBD. You may have multiple company files with a one time license. Deploy a private cloud if required to access your data by internet connection.