When you as a user are contact for only 1 company, you are directed to that company when clicking the company center. All information about this company can be found here.
In the case you are contact for multiple companies, you click on the company center, and there you will be redirected to an overview, showing you all your companies. On top of the window also a search function is available giving the possibility to search for company names. When you click on a company all information about this company is displayed.