- Casual Male XL
- Cat Clinic
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- Cat the Rental Store
- Catalyst
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- Catering by Design
- Catering Company
- Caterpillar
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- Caterpillar Sales & Service
- Catfish Cabin
- Catfish Corner
- Catfish House
- Catfish King
- Cathay Bank
- Cathedral of Praise
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- Catherine's Plus Sizes
- Cathy Jean
- Cathy's Beauty Salon
- Cato
- Cato Corporation
- Cats
- Cat's Music
- Cat's Pajamas
- Cattlemen's Restaurant
- Cavalier Cleaners
- Cave
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- Cavender's Boot City
- Cazadores Mexican Restaurant
- CBC
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- CBS Cos - Area Offices
- CC Midwest
- CCA
- CCI Wireless