MarketSpark Categories Advertising & MarketingWeb Services 673 Potomac Station Dr. #622 Leesburg VA 20176 (703) 570-4185 Send Email Visit Website About Us Digital Marketing and Advertising Agency Rep/Contact Info Mike Dowling × Mike Dowling Phone: (703) 570-4185 Send an Email Tammy Swankowski × Tammy Swankowski Co-Owner Phone: (540) 533-3069 Send an Email Share × Print Email Facebook Twitter LinkedIn Tell a Friend ×