There are two different options to manage multiple locations depending on the nature of your business. You can refer to these methods below:

If you have multiple locations within a business and your teachers and students are not segregated by location, you can add locations to the Locations list in your Teachworks account.

You can find an article that contains the instructions for adding locations here: Locations. You can also add sub-locations to parent locations for rooms within a location.

If your business has multiple locations that operate as separate businesses with their own manager, teachers, students and invoicing, then you will need to create a Master Account and create separate Teachworks accounts for each location/branch.

You can find instructions for setting up a Master Account and branch accounts in this article: Master Accounts.