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.

• The Myers-Briggs Company, 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, The Myers-Briggs Company, 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 Mary and Isabel's Library Online (MILO). This Florida-based organization, founded by Isabel Myers and Mary McCaulley, Ph.D., publishes and distributes books and materials about the MBTI assessment and other instruments.

Myers and Briggs Foundation is a public provider of the MBTI^® Certification Program in the United States.