- Alachua County, FL
- Provides services, programmes, and employment opportunities for developmentally disabled adults and children. - Arc Baton Rouge, The
- Provides services for children and adults with developmental disabilities and their families in the Greater Baton Rouge area. Includes jobs, recreation, respite, early intervention, and independent living. - Arc of Frederick County, The
- Provides advocacy, resources, and connections for individuals with developmental disabilities and their families. - Arkansas
- Statewide membership organisation providing support, advocacy, education, and leadership to people with developmental disabilities and their families. - Austin, TX
 - Baltimore, MD
- Information and resources for people with disabilities - Blackstone Valley, RI
- Committed to supporting people with developmental disabilities. - Clackamas County, OR
- Advocates for and providing services to people with mental retardation and developmental disabilities and their families. - Cowlitz Valley, WA
- Dedicated to providing vital connections and support for the developmentally disabled. - Fort Bend County, TX
- Provides advocacy and training for people with mental retardation and other developmental disabilities. - Grand Forks, ND
- Serving people with mental retardation and their families in the upper Red River Valley in eastern North Dakota. - Greater Boston, MA
- A nonprofit organisation that supports adults, children, and families dealing with developmental disabilities. - Illinois
- Advocates for people with disabilities. - Massachusetts
 - Montgomery County, MD
- Supporting persons with mental retardation and their families. - Multnomah County, OR
- Serves people with developmental disabilities. - New Jersey
- Aimed at building a better quality of life for people with mental retardation. - Ohio
- Concerned with the human rights, personal dignity, and community participation of people with mental retardation and other developmental disabilities. - Palm Beach County, FL
- Aims to improve the lives of those who have developmental and mental disabilities through services, advocacy, and education. - Parca - San Mateo, CA
- Serves peoples in the Bay Area with developmental disabilities through advocacy and social programmes. - Prince George's County, MD
- Working to make the county a great place to live, learn, work, and play for people with mental retardation and their families. - Queensbury, NY
- Providing services to individuals with disabilities and their families in Upstate New York. - San Diego, CA
- Providing service for people with developmental disabilities and their families since 1951. - Schuyler County, NY
- A private, not-for-profit organisation founded by parents and friends of people with disabilities. - Ventura County, CA
- Serving people with developmental disabilities since 1956. Many links to disability-related sites, ADA info, regional programmes and services. - Westchester, NY
- Provides educational, vocational, residential, clinical and social services to children and adults with developmental disabilities.
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