Non-profit organizations (NPO) for mental health are becoming significant actors. Here, their roles in welfare society as understood in research are identified and analyzed. Results from recent research publications on the mental health field are synthesized and categorized in order to find out their origin, theoretical orientation, and view on mental health NPO’s in relation to the public welfare systems. Relevant publications are primarily from the US, empirically oriented, and addressing surveys on both individual and organizational level. NPOs were most often seen as consensus-oriented service organizations, while very few (4%) were seen as conflict-oriented advocates (i.e., anti-professional). It is concluded that these NPOs are most often studied as complements or alternatives to existing public welfare services rather than on their own terms, and that research on the topic lacks more complex theoretical attempts.