ListGIANT is direct marketing firm specializing in providing direct mail, telemarketing, and email lists. With a wide array of GIANT databases to choose from, you really can build the perfect marketing list! Choose from multiple list demographics, run counts and have your data delivered in minutes through our self-service ListGIANT portal any time, any where. ListGIANT, founded by a power team of marketers with over 30 years of experience in the industry.