The aim of this article is to examine the explanatory forces of power resources and institutional factors on whistle blowing activity, its effectiveness and reactions. The authors analyse survey material of 6000 Norwegian employees across sectors and industries, and find that individual power resources have little impact, but the organizational power resources of positions, and institutional factors matter. Departing from a Norwegian labour market model, this is a result that encourages continued focus on codetermination, democracy and openness.