Association of Registered Clinical Hypnotherapists
ARCH's certification standards are among the most rigorous in the field of clinical hypnotherapy.
http://www.archcanada.ca

International Medical and Dental Hypnotherapy Association
Continuing Education Credits are required by both the IMDHA and ARCH for yearly re-certification, just as they are in other medical and mental health professions.
http://www.imdha.com

Milton H. Erickson Foundation
Milton Erickson, M.D. is considered the father of modern hypnotherapy. He believed in the wisdom of the subconscious mind, and that people have all the resources necessary to resolve any problems and issues.
http://www.erickson-foundation.org/