Contact Leads Express Leads Express is a division of Advanced Marketing Concepts, Ltd., dba MarketSharp MarketSharp 500 2nd St S Suite 100 La Crosse, WI 54601 If you need assistance please call or e-mail inquiries to sales or support or use our employee directory below. Sales (800) 861-3969 or [email protected] Support (800) 596-4368 or [email protected] Fax (608) 779-5045