Britannica Software Technical Support For help with Britannica CD-ROMs and DVDs, visit our online Technical Support site.
Britannica Subscription Support For help with Britannica Premium Service subscriptions and account maintenance, click here.
Britannica Store Support For help with Britannica Store orders and products, visit our online Store Help.
Britannica Institutional Subscription Support For help with Encyclopaedia Britannica Online subscriptions for institutions, please click here.
General Customer Support Need help? Visit our Frequently Asked Questions page for answers to common inquiries. Or, you can contact Britannica Customer Support by e-mail using our Online Help Form, or by telephone or fax. Customer Support personnel are available from 8:00 A.M. to 6:00 P.M. U.S. Central Time, Monday-Friday.
E-mail To contact Britannica Customer Support by e-mail, please submit your inquiry, feedback, suggestions, or comments via our Online Form.
Telephone/Fax To contact Britannica Customer Support by telephone or fax, use the following numbers:
Telephone (U.S.and Canada):
Telephone (All other countries):
Mailing Address If you prefer, you may write to Britannica Customer Support at the following address:
Britannica Customer Support 310 South Michigan Ave. Chicago, IL 60604 USA
Britannica International Offices In addition to our headquarters in Chicago, Britannica has locations around the world. Click here for information on how to contact our international offices.