<h1>Market Research and Public Opinion Polling Services Classified as 99837; Public Relations Separate as 998312</h1> Market research and public opinion polling services are classified under the service code group 99837. This group includes two specific codes: 998371 for market research services, which encompasses market analysis, competition analysis, consumer behavior studies, and the use of research tools like surveys and econometric models; and 998372 for public opinion polling services, which involve gathering information on public opinions about social, economic, political, and other issues. Public relations services are not included under these codes and are classified separately under code 998312. The classification is based on the modified United Nations Central Product Classification (UNCPC).