Aim of the study is to compare and evaluate the possible integration of two methods of work-related stress risk assessment: the "subjective/perceptive" ISPESL-HSE and the "objective/intersubjective" VIS. Four different types of companies were examined: public education, social services, forestry work, agricultural machinery industry. Both VIS and HSE showed a different level of risk among the companies, with a good overlap of the results obtained with the two different methods of investigation. They also integrate each other in eliciting a better and more articulated study of work-related stress risk.