Research Plus Inc. is a full service nationwide investigative agency serving the needs of insurance companies, law firms, as well as other businesses and corporations. Our nationwide assignment center and corporate offices are located in Wisconsin, but we have agents and informants throughout the United States.A thorough, efficient, and well-documented investigation can save your company thousands of dollars, therefore, it is important to select a proven investigative firm. Research Plus has been in business since 1976 and is considered an industry leader. We take great pride in our work and our reports have proven to be a