- Cambridge Home Health Care
- Cambridge Integrated Services Group
- Cambridge Investment Research
- Cambridge Soundworks
- Cambridge Square Apartments
- Camco
- Camden National Bank
- Camellia Cleaners
- Camelot Care Centers
- Camelot Cleaners
- Camelot Music
- Cameo Beauty Salon
- Cameo Cleaners
- Camera Corner
- Cameron Mitchell Restaurants
- Cameron State Bank
- Camille's Sidewalk Cafe
- Camino Real
- Camp Fire
- Camp Fire Boys & Girls
- Camp Fire USA
- Campbell Construction
- Campbell Electric
- Campbell Insurance Agency
- Camping World
- Campora Propane Service
- Campus Barber Shop
- Campus View Apartments
- Canada Drug Service
- Canada Dry Bottling
- Canada Life Assurance
- Canadian Pacific Railway
- Canam Steel Corporation
- Cancer Care Center
- Cancer Center
- Cancer Center of Kansas
- Cancer Treatment Center
- Cancun Mexican Restaurant
- Cancun Restaurant