As an Avero Admin, you have control over who has access to your data in Avero and which reports they see when they sign in. Not sure if you are an Admin? Click on Settings in the top right corner of your Avero account. If you see Users and Teams, you are an Admin!
On the Manage Users tab and check the box next to the user you wish to update. You can then see the available actions light up at the top of the table, select Change Business Access (give the user access to view the data at more or fewer locations).