British Association for Psychological Type
- Provides information, support and continuing professional development to qualified practitioners of the MBTI.
- http://www.bapt.org.uk

Association for Psychological Type (APT)
- Promotes the practical application and ethical use of psychological type.
- http://www.aptinternational.org/

The Myers & Briggs Foundation
- Mission is to continue the work of Katharine Cook Briggs and Isabel Briggs Myers in the field of psychological type, especially the ethical and accurate use of the Myers-Briggs Type Indicator instrument.
- http://www.myersbriggs.org/

Chicago Chapter of Association of Psychological Type
- For persons interested in the Myers Briggs Type Indicator (MBTI) and other personality style indicators. Events, newsletter, links.
- http://www.chapt.org/

New Zealand Association for Psychological Type
- A network of people interested in personality type. Promotes the constructive use of differences of Psychological type based in C. G. Jung's theories.
- http://www.nzapt.org.nz/

Madison Association for Psychological Type
- Organization of people interested in the MBTI, Myers-Briggs type applications. Includes chapter information, meeting calendar.
- http://www.personalitypathways.com/Mapt.html

Australian Association for Psychological Type (AusAPT)
- Exists to promote knowledge and use of psychological type in Australian society, in particular, for professional users of type.
- http://www.aapt.org.au/