SENIOR CITIZEN MAILING LISTS AND TELEMARKETING LISTS Senior Source List specializes in providing direct mail and telemarketing lists for some of the largest brands that target seniors, mature adults, and the over-50 consumer market. Since 1989, we have worked closely with thousands of companies to deliver the most accurate, most comprehensive and best-sourced senior citizen marketing lists in the direct marketing industry. As one of the oldest and most-respected senior list companies in the country, we grew up in the mature adult market and... read full review »