Here is where you manage your companies.

Create new company

You can create a new company profile by clicking on 'Create new company'.

After that, you'll need to provide some details:

If you are in multiple company accounts, you can switch between company profiles. You will see a list of the companies you're in a you'll be able to Select the one you need.

Here you can also choose to remove a company you're attached to from your profile by clicking on 'Leave company'