- Cable TV Companies & Services, Nelsonville
- Cafe Restaurants, Nelsonville
- Cameras & Photographic Supplies, Nelsonville
- Campgrounds, Nelsonville
- Car Detailing & Wash Service, Nelsonville - Auto Detailing
- Car Wash, Cleaning, Wax & Polish Service, Nelsonville
- Cars, Truck, Van & SUV Car Dealerships, Nelsonville - Auto Dealers
- Casual Dining Restaurants, Nelsonville
- Central American Restaurants, Nelsonville
- Ceramic Equipment & Supplies, Nelsonville
- Chambers Of Commerce, Nelsonville
- Check Advance Service, Nelsonville
- Chicken Restaurants, Nelsonville
- Chiropractor, Nelsonville
- Christian Churches, Nelsonville
- Church Of The Nazarene, Nelsonville
- Churches 1 Of 3, Nelsonville
- Churches 2 Of 3, Nelsonville
- Churches 3 Of 3, Nelsonville
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- City & County Administrative Agencies, Nelsonville
- City & County Correctional Facilities, Nelsonville
- City & County Government, Nelsonville
- Clergy, Nelsonville
- Colleges & Universities, Nelsonville
- Commercial Equipment, Nelsonville
- Communications Services, Nelsonville
- Community & Recreational Facilities, Nelsonville
- Community Centers, Nelsonville
- Community Services, Nelsonville
- Concrete Contractors, Nelsonville - Concrete Construction & Concrete Companies
- Construction, Nelsonville
- Construction Services, Nelsonville
- Consultants & Services, Nelsonville
- Contact Lenses, Nelsonville
- Convenience Stores, Nelsonville
- Cooling System & Parts, Nelsonville - Antifreeze, Radiator, Water Pump, Fan, Hoses, Belts, etc
- Country Cooking Restaurants, Nelsonville
- Craft Supplies, Nelsonville - Hobby & Craft Stores
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