Washington Market Research and Analysis 4201 Connecticut Ave NW # 212 Located in the Washington, DC area, National Research is a well-established data collection firm with extensive experience in sampling, telephone interviewing, and data tabulation for a variety of business and public affairs clients. Washington DC Market Research and Analysis National Research Inc www.nationalres.com National Research LLC National Research data collection sampling telephone interviewing data tabulation survey research CATI market research National Research LLC National Research data collection sampling telephone interviewing data tabulation survey research CATI market research Business Reviews National Research Inc Testimonials