Earth Association of Regression Therapy (EARTh)
This is an independent association with the objective to create and maintain an international standard in regression therapy and improve and enlarge its professional acceptance. Every summer it offers a series of workshops for ongoing professional development. It aims to advance the field by providing a meeting ground for regression therapists through conferences and meetings.
http://www.earth-association.org

Spiritual Regression Therapy Association (SRTA)
This is an international association of regression therapists that respect the spiritual nature of their clients. Established by Andy Tomlinson, they are professionally trained by the Past Life Regression Academy to international standards and work to a code of ethics that respects the clients’ welfare.
http://www.regressionassociation.com

Society for Medical Advance and Research in Regression Therapy (SMAR-RT)
This international society, formed in April 2013, aims to conduct and coordinate research in regression therapy. It is led by medical doctors who share the vision to bring about the integration of complementary and holistic approaches into conventional Medicine. It is a non-profit organization and hopes to raise awareness of the effectiveness of regression therapy as a healing tool within the medical profession.
http://www.smar-rt.org

Association for Regression and Reincarnation Research (ARRR)
This association was founded by Dr. Newton Kondaveti and launched in Hyderabad, India, in 2010 with the aim to promote research in regression and reincarnation, and work towards increasing awareness and acceptance of past life therapy among people in India and all over the world. It publishes a newsletter, a magazine, holds annual conventions and conducts certification examinations for professionals practicing past life regression therapy.
http://www.arrrglobal.org

Tasso International
Tasso International is a branch of Tasso institute is founded by Hans Tendam with a mission of changing lives worldwide through the provision of training in transpersonal regression therapy.
http://www.tassointernational.com/

International Board of Regression Therapy (IBRT)
This is an independent examining and certifying board for past life therapists, researchers and training programs. Its mission is to set professional standards for regression therapists and organisations. The website has a list of international accredited past life and regression therapy training organisations.
http://www.ibrt.org

ACHTEVIP – Asociación Chileana de Terapeutas en Vida Pasada
The Chilean Association of Past Life Therapists was founded in 2013 to promote past life therapy in the country.
http://achtevip.org/en/about-us/