- Infinity Healthcare of Arkansas
- Infinity Rehab
- Inflect
- Ingleside Communities
- Inglis House
- Innovation in Aging
- Innovative Health
- Insight Partners
- Inspiren
- Institute for Healthcare Improvement
- Institutional Property Advisors
- Institutional Shareholder Services
- Integra Health
- Integra Med Analytics
- Integrated Care Solutions
- Integrated Rehab Consultants
- Integrity Healthcare Management
- IntelyCare
- Interface Rehab
- Intermountain Health