American Association on Intellectual and Developmental Disabilities (formerly AAMR)
AAIDD promotes progressive policies, sound research, effective practices, and universal human rights for people with intellectual disabilities.

The Arc of the United States
Works to include all children and adults with cognitive, intellectual, and developmental disabilities in every community.

Attorney General

Brain Injury Association (US)
Nonprofit organization working on behalf of individuals with brain injury and their families.

Business Manager's Association
Organization for Business Managers of County Boards of Developmental Disabilities

Centers for Medicaid & Medicare Services (formerly HCFA)

Delaware Creative Housing
Providing housing, environmental modifications and manufactured accessible homes throughout Ohio.

Human Services Research Institute

National Down Syndrome Society

OAAS
Ohio Association of Adult Services

OAIAMCBDD
Ohio Association of Investigative Agent Managers of County Boards of DD

OASC
Ohio Association of Services for Children

OCALI
The Ohio Center for Autism and Low Incidence. OCALI serves as a statewide clearinghouse for information about autism spectrum disorders and low incidence disabilities; responds to individual requests for information; maintains a collection of resources for public distribution; and monitors information on resources, trends, policies, services, and current educational interventions.

OSCBDD
Ohio Superintendents of County Boards of DD
 
Ohio Government
All web based Ohio government information and resources.

Ohio Revised Code
   - Title 5126: County Boards of Developmental Disabilities
   - Title 5705: Tax Levy Law

Ohio Department of Aging

Ohio Department of Job & Family Services (ODJFS)

Ohio Department of Mental Retardation and Developmental Disabilities home page

Ohio Developmental Disabilities Council

Ohio Legal Rights Service

Ohio Public Images

Ohio Rehabilitation Services Commission

OhioSibs
Recognizing that adult siblings could greatly impact not only their DD sibling’s quality of life but the entire family’s life as well, Dr. Fish and a small group to volunteers set out to establish Ohio SIBS (Special Initiatives by Brothers & Sisters) an organization dedicated to serving the needs of adult siblings of people with DD.

Prader-Willi Syndrome Association USA

SOCOG
Southern Ohio Council of Government

State of Ohio Board of Nursing