- LadyBug House
- Lakehouse Ventures
- Lakewood Retreat Center
- Lancashire Teaching Hospitals NHS Trust
- Lancaster University
- Landmark
- Landmark Health
- Lanier Hospice
- Lathrop GPM
- LeadingAge
- LeadingAge Ohio
- LeagingAge Ohio
- Leapfrog Pediatric Home Care
- Leaps by Bayer
- Lee County Health Department
- Leeds Illuminate
- Leeds Institute of Health Services
- Leeds Teaching Hospitals
- Leerink Investors
- Legacy Care Partners