Workplace responses to labour inspectorate interventions regarding psychosocial risks at work are not well
known. This study aimed to assess the effects of inspection visits at company level. A survey was conducted in
two groups of companies. In one group, companies were visited by a labour inspector some days after the survey,
and in the other group, not. The survey was repeated one year later in both groups. It relied on a structured
phone interview with the person within the company who best knew about occupational health and safety. We
collected information about health and safety management, worker participation, as well as ability, willingness
and measures for the prevention of psychosocial risks. Two kinds of prevention measures were distinguished:
specific psychosocial risk management measures on one side, and more general improvements of working
conditions on the other side. 185 companies with an inspection visit and 161 companies without took part in the
study. The results were encouraging, since inspected companies improved their management of health and
safety, increased their ability in psychosocial issues, and demonstrated a stronger willingness to act. To a lesser
extent, they implemented specific psychosocial risk management measures. However, visits did not lead to
improvements regarding scores for employee participation or general improvements of working conditions, such
as work organisation, working schedules or staffing levels. A further step for regulatory initiatives would be to
emphasise more strongly the need for a prevention approach grounded in the assessment and improvement of
job designs, content and organisation.