Courthouse Retrieval System, situated in Knoxville, Tenn., specializes in online real estate data services. Founded in 1989, the company provides easy access of property data to real estate professionals, investors, appraisers, mortgage companies and title firms. Its product, Power Tools for Property Records, offers corporations access to public tax records, sales and mortgage histories, warranty deeds, area demographics, property analysis and interactive global information system (GIS). It provides property data from more than 225 counties across the United States. More than 15 MLS (Multiple Listing Service) boards, serving more than 45,000 members, use tax information and maps from Courthouse Retrieval System.