Established in 1988, Scientific Telephone Samples (STS) is a leading provider of quality sampling services for the marketing research and academic communities. We offer a comprehensive array of sampling options including RDD landline, RDD wireless, Enhanced-Wireless™, listed/targeted, business-to-business, voter sample, phone appends and data enhancement. Reduce wireless data collection costs with Enhanced-Wireless™, an extremely productive wireless sample based upon a very large database of known wireless phones with name/address. Target wireless individuals using Enhanced-Wireless™ by age, income, gender, ethnicity, radius, BG/tract, polygon, etc. We offer expert sampling consultation and demographic analysis and will help you achieve a representative and productive sample.