DataSource provides a variety of capabilities in all major data collection modes.

• Telephone Surveys. Telephone surveys are conducted from one of two monitored interviewing facilities that use computer-assisted telephone interviewing (CATI) software. DataSource staff interviews 100,000+ households and businesses per year.
• Mail Surveys. Mail surveys are conducted through DataSource's Fulfillment Center in San Marcos. The Fulfillment Center manages inventory, monitors address quality control, manages electronic return tracking systems, oversees mailing and postage tasks, and mailing of incentives to respondents. The Fulfillment Center handles over 200,000 pieces of personalized survey mail per year. The mailing operation uses a Pitney Bowes electronic postage meter and mailing software, linked to a Postage-by-Phone data center.
• Internet Surveys. Design, programming, management and real-time reporting capabilities with various types of internet surveys.
• Mixed-mode Surveys. Mixed-mode surveys (combinations of mail, telephone, internet, fax, and in-person procedures) are used in complex studies, e.g., household diary projects.
• Qualitative Research. DataSource can provide any combination of in-depth interviewing, both through in-person interviewing as well as focus groups. This research can also be utilized independently or to enhance quantitative research on any particular study.

In addition, DataSource specializes in conducting large-scale, multi-stage and/or bilingual survey and market research. DataSource offers the following research services:

• Data Collection Design (including script development)
• CATI and Web Programming
• Telephone, In-person and Web Interviewing,
• Data Entry
• Tabulations/Coding,
• Data cleaning/delivery,
• Data Reporting
• Inbound telephone surveys, and
• High-volume mailing.

Some of the specialty services DataSource offers are Spanish-language interviewing, low incidence population screening, respondent tracking, and sensitive topic interviewing.

Furthermore, DataSource and its affiliate, NuStats, routinely team up to provide full research capabilities, including in-depth statistical analysis, policy planning/consulting and geocoding as well as other specialized services.