Sharing reports architecture

We are planning to share some reports with other users that could be from other organization. Our plan is sharing the reports in a web application so we can manage who can access those reports (as we have Share Points but with more flexibility). At this point, we have some questions:

• ¿Do we have some Microsoft application from which we can create a repository of reports in which we can publish our reports with a view for the end-user to export that information?     

• If so, can we manage from that application what users or group of users can access to some specific reports?