- Allure Group
- Allure Healthcare Services
- AllyAlign Health
- Almost Family
- Altarum
- Altarum Institute
- Altenheim Senior Living
- Altercare Integrated Health Services
- Altitude Health Services
- Altitude Investments
- Alumni Venturea
- Alvarez & Marsal
- Alzheimer’s Association
- Amazon
- AMDA
- AMDA – The Society for Post-Acute and Long-Term Care Medicine
- Amedisys
- American
- American Academy of Ophthalmology
- American Antitrust Institute