- Altenheim Senior Living
- Altercare Integrated Health Services
- Altitude Health Services
- Altitude Investments
- Alzheimer’s Association
- Amazon
- AMDA
- AMDA – The Society for Post-Acute and Long-Term Care Medicine
- Amedisys
- American Association for Justice
- American Case Management Association
- American College of Health Care Administrators
- American Geriatrics Society
- American Health Associates
- American Health Care
- American Health Care Act
- American Health Care Association
- American Health Plans
- American Health Quality Association
- American Hospital Association
