I have multiple companies under one main organisation.

I would like to start to separate them to have a more clear view of how each firm is working.

Also they have different products and different contacts.

They all have different branding, and different language. 

BUT they have the same VAT number and bank account.

Only one problem I have with adding just a new organisation. 

The invoice numbers of all organisations should be following up eachother. This is obligated for the accountancy.

For example:

Company 1: invoice number: inv001

Company 2: invoice number: inv002

Company 1: invoice number: inv003

Company 1: invoice number: inv004

Company  3: invoice number: inv005

And so on...

Is this possible to make the setup work like this? and how?

It is quiet urgent as I have to send some invoices out.

Thanks in advance.