APA is the leading scientific and professional organization representing psychology in the United States.

The American Association for Marriage and Family Therapy (AAMFT) is the professional association for the field of marriage and family therapy.

The American Counseling Association is a not-for-profit, professional and educational organization that is dedicated to the growth and enhancement of the counseling profession.

The Association for Psychological Science (previously the American Psychological Society) is a nonprofit organization dedicated to the advancement of scientific psychology and its representation at the national and international level.

The Psychotherapy Cooperative is a small non-profit therapy organization created in 1996 by the teaching faculty and graduates from the Masters in Psychology program at Seattle University.