The following are the main contact details for the GNOME Foundation. Additional contact methods can be found in the GNOME Project Handbook.
The physical mailing address of the GNOME Foundation is:
GNOME Foundation
1875 Mission St Ste 103
#605
San Francisco, CA 94103
USA
Fraudulent checks
The Foundation rarely sends out checks, and never without prior discussion with the recipient. Those checks are usually for travel or other reimbursements for GNOME contributors. If you have received a check in the mail from the GNOME Foundation that you were not already expecting, it is likely fraudulent.
Telephone
Voice messages can be left at +1-707-435-3731.
General inquiries can be made to info@gnome.org.