- Camcar-Textron Decorah Operations
- CAMcare Health Corporation
- Camden County College
- Camden Property Trust
- Camel Rock Casino
- Cameron Good Memorial Golf Classic
- Cameron Memorial Community Hospital
- Camino Al Cielo Funeral Chapels
- Campania Management Company
- Campbell Clinic
- Campbell County Health
- Campbell Soup Co.
- Campbell-Stone North Apartments Inc.
- Campus Specialties
- Camtronics
- Camui Health Services, Inc.
- CAN Financial
- CAN Insurance Services
- Canadian Tourism Commission
- Cancer Society of Greenville County
- Cancer Treatment Centers of America, Phoenix
- CandD Technologies, Inc.
- CandF Mortgage Corporation
- Candler Elementary School
- Candlewood Suites Portland-Airport
- Candlewood Suites, Bellevue
- Candlewood Suites, Milpitas
- Candlewood Suites, Pleasanton
- Candlewood Suites, Sacramento
- Cane Creek Middle School
- Canisius College
- Cannon Memorial Hospital
- Cano Container Corporation
- Canon Medical Systems Corporation
- Canonsburg Hospital
- Cansler, Johnson and Vollherhausen
- Canteen Food and Vending
- Canterbury Manor
- Canton Group
- Canton Potsdam Hospital
- Canyon County
- Canyon Vista Medical Center
- Cap Tech Ventures, Inc.
- Cape Canaveral Hospital
- Cape Cod Hospital
- Cape Coral Hospital
- Cape Environmental Management Inc.
- Cape Fear Valley Health System
- Cape Girardeau Drury Lodge
- Cape Girardeau Pear Tree Inn