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Contact Us

This page shows a number of ways that you can contact us, including our mailing address and contact information. If you would like to send us an email, please complete the form at the bottom of the page and click the "Send Email" button.

Organization Info

Payment / Official Address
PO Box 386
LibertyvilleIL  60048
United States of America
Street Address
El Barrio Restaurant
1122 Diamond Lake Rd.
MundeleinIL  60060
United States of America
Phone Number

Organization Contacts

Data Protection Officer
Cynthia Collins
Cynthia Collins
Jeanne Leone-Schmit
Joan Schneider
Carol Janssen
Chris F Lopez
Mary(Gina) DeJoseph

Send Us an Email


Website Technical Support

If you have a problem logging in, updating your profile, renewing your membership, or making a payment, please call ClubExpress Support.

Please Note We are unable to provide information on Sitzmark Ski Club activities or policies, or to supply contact information that is not already displayed on this page.

Toll Free: 1-866-HLP-CLUB (457-2582)     Outside the US: +1 847-255-0210
Telephone support is available from 6:30 AM to 9:00 PM, Mon-Fri, US Central time. Outside these hours, please email