- A Journal of Palliative Medicine
- A Plus Hospice
- A Plus Hospice Care
- A-Plus Hospice
- AAdi Home Health & Hospice
- AARP
- AARP Foundation
- AARP Illinois
- Abbot Laboratories
- ABC Hospice
- Aberdeen Place Hospice
- ABI Research
- Abigail E. Keller Foundation
- Abode Healthcare
- Above & Beyond Home Health Care and Hospice
- ABS Palliative and Hospice Care
- Absolution Films
- Abt Associates
- Abundant Hospice
- Acadia Hospice