There are a number of EAAT providers in the UK, the USA and other countries.
Riding for the Disabled provides information about riding centres in the UK.
The Professional Association of Therapeutic Horsemanship International provides information about riding centres in the USA.
There are some nationally recognised qualifications for providers of EAAT. For example:
In the UK, the Association of Chartered Physiotherapists in Therapeutic Riding runs a one year course for chartered physiotherapists who wish to deliver hippotherapy and/or therapeutic horseback riding. In practice, some providers of EAAT (such as some physiotherapists) may be regulated by other bodies, such as the Health and Care Professions Council.
In the USA, hippotherapy sessions must be conducted by a licensed occupational, physical or speech therapist or therapy assistant with additional specialised training in using the movement of the horse. The therapist should be a registered NARAH Therapist or a Hippotherapy Clinical Specialist (HPCS). If the therapist does not have such credentials he must be supervised by an HPCS therapist.