Several major organizations in the United States are closely connected with the Myers-Briggs Type Indicator^® instrument, and these organizations provide support, training, research, and distribution of the Indicator. For contact or purchase information from organizations in other countries, please go to International Use.

• CPP, Inc., is the publisher and distributor of the MBTI^® instrument. This California-based company, which publishes other psychological instruments and products, also licenses international distribution and translations of the MBTI instrument. In addition, CPP, Inc., markets products and materials related to the MBTI instrument and other instruments.

• Center for Applications of Psychological Type™, Inc. (CAPT^®), is a not-for-profit organization that promotes MBTI research and the accurate understanding and ethical use of the Myers-Briggs Type Indicator instrument. CAPT maintains the Isabel Briggs Myers Memorial Library and the comprehensive MBTI Bibliography. This Florida-based organization, founded by Isabel Myers and Mary McCaulley, Ph.D., publishes and distributes books and materials about the MBTI instrument and other instruments.

• The Association of Psychological Type International (APTi), is a membership organization of professionals interested in personality type. APT schedules conferences, publishes The Bulletin of Psychological Type, supports regional and local chapters for members, and maintains interest-area coordinators for users of psychological type. APT also has links to international type organizations.

• American Management Association (AMA) is an authorized provider of the MBTI^® Certification Program. AMA provides a wide variety of training and professional development solutions for advancing the skills of individuals, teams, organizations and government agencies.