The paper deals with the prevalence and frequency of use of the HRIS system in Croatian companies. The motivation research stems from insufficient knowledge about the frequency and habits of using the HRIS system with the aim of more efficient human resource management, with regard that HRIS system has the potential to provide a factual basis for strategic human resource management. The primary research in this paper was conducted using desk research and by conducting a survey of HRIS usage in Croatian companies. Based on the theoretical framework of the research, it is concluded that all Croatian companies, except for branches of multinational companies, lag in the widespread and sophisticated use of HRIS as support in strategic human resource management. The application of HRIS in Croatia is mainly associated with large companies. The results of the desk analysis show that the top 500 enterprises in Croatia do not mostly promote HRIS as support to sustainable competitiveness. Although mainly low, this share is still higher in the private than in the public sector. The results of the primary research show that the surveyed companies do not often use all the functionalities of HRIS and that the primary reason for using HRIS is easier administration management. The suggestion is, therefore, to develop an integrated and holistic approach in the implementation of HRIS as a system to support strategic human resource management.