You can store as many companies as you like in your EVX Software installation, but one of them is different from all the others: The so-calledowner company defines which company (or organization or group of people) runs an EVX Software installation and therefore has some privileges. All the other companies are called client companies.
The two main differences between these two types of companies are:
You can have as many client companies as you like in a single EVX Software installation. Users of different client companies can collaborate when you assign them to the same workspace.
PLEASE NOTE: Even if users do not share any workspace, they still can find out about the existence of all other users from any company. This can be a problem if you have a single EVX Software installation for several clients, and these clients should not know of each other, so be careful.
A company can have users and contacts assigned to it. In the detail view of a company, you can see, edit, and create such users and contacts. (Please make sure you understand the difference between users and contacts.)
Workspace permissions are part of a user profile, but there are workspace permissions on the company level as well. To understand these permissions (especially how they relate to the workspace permissions of a single user), please read Understanding user rights.