Within Teamwork Projects, when you add any people to your site, you can mark them as belonging to a specific company. Each project is also associated with a company.
You will create the owner company when you set up your site, and you can then add external companies anytime.
To view your companies, go to the People area at the top of your site where you can select the 'Companies' tab:
Companies provide a way to group people together for privacy settings. Users in the owner company have different permissions options than people in external companies.
You can use external companies as a way to create departments within your projects site. For example, creating one external company for your design team and placing all members of your design department in this company.
Your owner company will have an 'Owner' label beside its name. You will see a total count of the number of companies on your site beside the quick search field.
Each company will show a count of how many standard users (green), collaborators (pink) and contacts (blue) they have.
Note: A user can only occupy one company at any time.
For more information see: Adding or editing a company