- Mission Hospice & Home Care
- Missoula Demonstration Project
- Missouri Home Hospice
- Mitchell Family Office
- Mitchell Hamline School of Law
- Mitchell House
- MJHS Health System
- MJHS Hospice and Home Care
- MJHS Hospice and Palliative Care
- Modern Healthcare
- Moderna
- Mohave Sunrise Rotary Club
- Molina
- Molina Healthcare
- Moments Hospice
- Monarch Healthcare
- Monmouth Medical Center
- Monogram Health
- Montefiore Health System
- Montgomery Hospice