- Cable TV Companies & Services, Keithville
- Campgrounds, Keithville
- Cars, Truck, Van & SUV Car Dealerships, Keithville - Auto Dealers
- Casinos, Keithville
- Casual Dining Restaurants, Keithville
- Ceramic Tile Flooring, Keithville
- Ceramic Tile Installation - Repair, Keithville - Ceramic Tiles Contractors
- Child Care & Day Care Services, Keithville
- Church Of God, Keithville
- Church Of The Living God, Keithville
- Churches 1 Of 3, Keithville
- Churches 2 Of 3, Keithville
- Churches 3 Of 3, Keithville
- City & County Administrative Agencies, Keithville
- City & County Government, Keithville
- CNC Machine Shop, Keithville
- Cocktail Lounges, Keithville
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- Commercial Equipment, Keithville
- Commercial Printing Manufacturers, Keithville
- Communications Services, Keithville
- Community Services, Keithville
- Concrete, Keithville - Cement & Concrete Products, Suppliers, Companies
- Concrete & Cement, Keithville
- Concrete Breaking, Coring, Cutting, Drilling & Sawing, Keithville
- Concrete Contractors, Keithville - Concrete Construction & Concrete Companies
- Concrete Product Manufacturers, Keithville
- Concrete Repair, Restoration, Sealing & Cleaning, Keithville
- Construction, Keithville
- Construction & Civil Engineer, Keithville
- Construction Companies, Keithville
- Consultants & Services, Keithville
- Convenience Stores, Keithville
- Cooking, Food & Beverage Equipment, Keithville
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