Reducing injuries problems in the electrical energy industry require the modern tools search and application for managing professional risks. The authors suggest the labor protection services specialists’ professional competence improving in organizations as one of these tools. Conducting experiment of the labor protection specialists’ professional competence improving impact assessment on the labor protection management effectiveness of was performed on the example of the energy sales company. The experiment purpose was the electrical injuries level decrease. The competency-based approach testing in the labor protection field is based on the researches results of more than 1000 organizations, where the assessment of more than 2000 labor protection specialists’ professional competence state was performed. The results obtained showed the occupational safety specialists professional competence improving effectiveness not only in electrical injury reducing by 1.5 times over 2 years, but also in the occupational safety management system effectiveness improving in the company as a whole. The authors forecast the further positive company’s competence approach impact in the labor protection field in dynamics. The experiment results are of practical interest to the labor protection services heads, personnel management services, leading top managers, employers.