- Acadian Companies
- Acadian Health
- Accel KKR
- Accent Medical
- AccentCare
- Accentra Home Health and Hospice
- Access Healthcare Physicians
- Acclivity Health
- Acclivity Health Solutions
- Accord Hospice
- Accountable Care Learning Collaborative
- Accreditation Commission for Health Care (ACHC)
- Accredited Home Health
- Accurate Home Care
- ACE End-of-Life Doula Services
- ACHC
- ACP Decisions
- Adaptive Hospice
- Addison Country Home Health & Hospice
- Addison County Home Health and Hospice