- Administration on Aging
- Aging Life Care Association (Formally the National Association of Professional Geriatric Care Managers)
- Alliance for Retired Americans
- Alzheimer's Association
- Alzheimer's Disease Education & Referral Center
- American Association of Retired Persons
- American Diabetes Association
- American Federation for Aging Research
- American Geriatrics Society
- American Heart Association
- American Society on Aging
- Area Agency on Aging
- Arthritis Foundation
- Care Guide
- Gerontological Society of America
- Geriatric Mental Health Foundation
- National Academy of Elder Law Attorneys
- National Area Agencies on Aging
- National Committee of Preserve Social Security & Medicare
- National Institute on Aging
- National Policy & Resource Center on Nutrition & Aging
- National Senior Citizen's Law Center
- National Senior Games Association
- Ohio Department of Aging
- Ohio Departments of Aging Senior Farmers Market Nutrition Program
- Senior Citizens' Resources
- Senior Corps
- Senior Drivers
- Senior Service America, Inc.
- SeniorNet
