- Advanced Home Care
- Advanced Hospice Management
- Advanced Illness Partners
- Advanced Integrative Medical Science Institute
- Advanced Integrative Medicine Science (AIMS) Institute
- Advanced Palliative and Hospice Social Work Certification (APHSW-C)
- AdVault
- Advent International
- AdventHealth Lake Wales Hospital
- Adventist Health
- Adventist Health Hospice of Mendocino County
- Advocate Aurora Enterprises
- Advocate Aurora Health
- Advocate Health
- Advocate Health Care
- Advocate Hospice
- Aegis Living
- Aegis Medical Group
- Aegis Therapies
- Aerial Anthropology