In case you have a large number of users, you might need a solution that allows to reduce licensing and infrastructure costs as well as simplify the software deployment and maintenance. Enterprise Edition provides you such a possibility. You can run several independent portals from a single Enterprise Edition installation instead of installing several application instances on separate servers.
For example, you can create individual portals for certain departments of your organization so that each portal contains own data and has some individual settings, but all the portals can be centrally updated and managed via Control Panel.
Using the Enterprise Edition Standard subscription you will be able to create two portals, in case you need more portals, you can select the Enterprise Edition Standard+ pricing plan which allows to create an unlimited number of portals.