Build an Interactive WordPress Extranet website

Our company is expanding into building educational, interactive and multi-media WordPress extranet websites for our clients. The project would include installing WordPress and then setting it up to be used as each our client’s intranet then converted into a communications hub for each organization. Each client has between 1200 and 200,000 merchants and only their merchants would be authorized users and have access to our intranet. IE private and accessible to only registered users. Content including video media, collateral educational materials, interactive learning and testing environments would be created and assimilated into the extranet for distribution to our clients' merchants. Website analytics would need to be inherent and published on a sophisticated client dashboard.