Hi,
Alfresco is a Content Management Software package which could manage the documentation for the largest companies in the world. The software or the service is to provide software support and not specific company setups and configurations. I'm sure they could assist you, but I think your post would be much for productive if you including some examples of what you would like to do, and how you would like to do it, for which people could then submit suggestion on how Alfresco could suit your needs.
As an example in Chapter 13 it shows an example of a bank that processes 20000 invoices per hour. You can implement various solutions by leveraging the Alfresco's content management and business process management features. Some examples include for example: order fulfillment, claims processing, underwriting, loan origination, contracts management, accounts payable managing checks and invoices.