The International Association of Psychosexual Therapists is a 501(c)(3) nonprofit professional organization dedicated to the advancement of international psychosexual therapy and the promotion of sexual health and wellness. Along with excellent networking and collaboration opportunities, the IAPST offers Psychosexual Therapy Certification (C-PST) for qualified individuals. Made up of an international body of highly educated, well-trained sex therapy professionals, the association promotes research and publications relevant to the field.

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The International Association of Psychosexual Therapists hold an annual international sex therapy conference, the International Symposium on Sex Therapy. The international sex therapy conference proceedings are published in book format, providing a competent platform to share new techniques for international sex therapists and advancing the state-of-the-art in the field of psychosexual therapy.