@diego09 wrote:is it possible to have several companies (each within their country/currency) under the same account?
One QBO account is for one company file. You can manage branches/divisions by utilizing the Class/Location feature available in QBO Plus. Otherwise you should open a new account. You are allowed to use the same email address to open multi QBO accounts.
https://quickbooks.grsm.io/Ireland
Then you may utilize a BI app to consolidate reports from multi QBO accounts if required.