- CaringKind
- Caris Healthcare
- Carlson School of Management
- Carlyle
- Carlyle Group
- Carlyle Healthcare Center
- Carmel Valley Manor
- Carnegie Capital
- Carolinas HealthCare System Blue Ridge
- Carroll Nursing Home
- Carthage Area Hospital
- Casamba
- Cascade Capital Group
- Cascade Capital Partners
- Cascade Health Services
- Cascades
- Cascades Healthcare
- Cascadia
- Cascadia Healthcare
- Case Western Reserve University School of Medicine