The International Federation of Dyslexia and Dyscalculia Associations (IFDDA) is an umbrella association of international non-profit dyslexia and dyscalculia organizations that focus their efforts on providing help for dyslexic and dyscalculic people.
The American Dyslexia Association Inc. is a non-profit organization that focuses its efforts on providing help for dyslexic and dyscalculic people with free information and teaching aids.