The name of your organization was originally named during the first user sign up. You can update your organization name and add an avatar thereafter.
You must be the Owner of an account to update the Organization name and avatar.
To Update Your Organization Name
Click Settings nestled under Manage in the left hand menu
Click General
Update Name
Click Change Organization Name
To Update Your Organization Avatar
Click Settings nestled under Manage in the left hand menu
Click General
Click Choose Image
Upload an image (not to exceed 15 MB in file size)
To Remove Your Organization Avatar
Click Settings nestled under Manage in the left hand menu
Click General
Click Remove Avatar