- 36|86
- 7Factor Software
- A Journal of Palliative Medicine
- AAdi Home Health & Hospice
- AARP
- Abbot Laboratories
- ABC Hospice
- Aberdeen Place Hospice
- ABI Research
- Abode Healthcare
- ABS Palliative and Hospice Care
- Absolution Films
- AccentCare
- Acclivity Health
- Acclivity Health Solutions
- Accreditation Commission for Health Care (ACHC)
- ACP Decisions
- Addison Country Home Health & Hospice
- Addus
- Addus Homecare