The 'Account Details' settings allows you to make changes to the details of the Firm:
Once you click onto the 'My Firm Details' page you will see multiple sets of options:
Firm Details: Name of Firm and Time Zone
Main Contact Person: First + Last Name, Email Address, Work Phone and Home Phone
Postal Address: Postal Address / PO Box, Town / City and Post Code
You can also add/change your Firm’s logo which will appear at the top right corner of your 1Place instance.
Click the green 'Update' button to save your changes: