Viewing Users and User Groups
You can view the list of users and user groups registered in the system on the Administration | Users and Administration | Groups pages. The content of these pages depends on your server's authentication settings and TeamCity edition. For example, user accounts search and assigning roles are not available in TeamCity Professional.
The top search panel allows you to quickly find users:
In the Find field, you can specify a search string, which can be a user visible name, full name, email address, or a part of it.
To narrow down the search, you can also restrict it to a particular user group, role, or role in a specific project. By selecting the Invert roles filter option, you can invert search results to show the list of users that do not have the specified role assigned.