A Company is one of the basic entities in The Portal (as well as the app). Just like in real life a Company in The Portal contains all the users and teams. The users in the Company can then be allocated into the teams. Company also contains basic information such as address, phone number and payment information which we use for billing purposes.
More than one Company can be displayed and managed in The Portal. For example, you may chose to mimic your corporate structure in The Portal and add several operating companies and ask one person or a group of people to manage all companies and their billing.