Business Central Company Hub gives you a list of the companies you work in. You can easily add new companies by just providing a URL and a name for the company. The list of companies contains a few KPI’s for the company that is displayed for the user if they have the needed access. You also have a list of assigned user tasks for a given company, so you can keep track of work required for each company.
Company Hub is an extension that gives you either a dedicated Company Hub home page (if you use one tenant as the main access point) or a similar task page if you use Company Hub from within a company where your role requires you to have a different home page. Both have the same features and the same easy access to the companies you work in.