This research study compared the quality of human resources management systems of companies that have been ISO 9001:200 certified against companies that do not have this certification. A tool, based on the eight principles of a quality management system, enabled the organizations to evaluate and describe the associated evidence/indicators and to determine their impact. The results indicate that there are no differences among the sets of companies with regard to the presence and impact of the evidence/indicators. We identified the need to design HR-specific quality management programs as well as strategies and plans aimed at continuously improving relations with suppliers. Furthermore, there is a need to develop practices associated with indicators to control and keep close track of organizational management.