Autism Research Institute
Non-profit organization devoted to conducting and disseminating research about the causes of autism and about methods of preventing, diagnosing, and treating autism and other severe behavioral disorders of childhood.

Autism Society of America
Organization of 20,000 members and more than 200 chapters nationwide. Goals include increasing public awareness about autism, providing information and education, supporting research and advocating for programs and services for the autism population.

Families for Early Autism Treatment (FEAT)
Non-profit organization of parents, educators, and other professionals who provide educational materials, advocacy, and support for the Northern California autism community.