- I-SNPs
- I3 Healthcare Consulting
- IBISWorld
- iCare Health Network
- Ice Miller
- Idaho Department of Health and Welfare
- IDEO
- iDocsWeb
- Ignite Medical Resorts
- IHCA
- Ikaria Capital Group
- Illinois
- Illinois Caregivers for Compromise
- Illinois Department of Corrections
- Illinois Department of Health
- Illinois Department of Healthcare and Family Services
- Illinois Department of Public Health
- Illinois Health Care Association
- Illinois Veterans Home
- Illuminate HC