Group Psychotherapy
Organizations
Atlanta Group Psychotherapy Society
Arizona Group Psychotherapy Society
Eastern Group Psychotherapy Society (EGPS)
Illinois Group Psychotherapy Society
Houston Group Psychotherapy Society (HGPS)
Group Psychotherapy Association of Los Angeles (GPALA)
Mid-Atlantic Group Psychotherapy Society
Northern California Group Psychotherapy Society (NCGPS)
Northeastern Society for Group Psychotherapy (NCGP)
Philadelphia Area Group Psychotherapy Society (PAGPS)
Puget Sound Group Psychotherapy Network (PSGPN)
San Diego Group Psychotherapy Society
Southwestern Group Psychotherapy Society
Westchester Group Psychotherapy Society (WGPS)
The American Society of Group Psychotherapy and Psychodrama (ASGPP)
Association for Specialists in Group-Work (ASGW)
Center for the Study of Group Processes (University of Iowa)
Division 49 of the American Psychological Association (APA): Group Psychology and Group Psychotherapy
Process Work Institute (Portland, Oregon, USA)
Research Center for Group Dynamics (University of Michigan)
Systems-Centered Training and Research Institute (SCTRI)
The Washington-Baltimore Center for the Study of Group Relations (WBC)
International Organizations
International Association of Group Psychotherapy and Group Processes (IAGP)
International Association for the Advancement of Social Work with Groups (AASWG)
International Psychodrama Network (includes links to other psychodrama sites)
The International Society for the Psychoanalytic Study of Organizations (ISPSO)
International Association of Facilitators
Opus – Organisation for the Understanding of Society
The Society for the Psychological Study of Social Issues
Group-Analytic Society international (GASi)