- Cafe Restaurants, Thompsonville
- Campgrounds, Thompsonville
- Canoe & Kayak Rental, Thompsonville
- Canoes & Kayaks, Thompsonville - Equipment, Gear, PFD, Paddles & Accessories
- Casual Dining Restaurants, Thompsonville
- Chimney Cleaning & Repair, Thompsonville - Fireplace - Chimney Sweep Services
- Chiropractor, Thompsonville
- Churches 1 Of 3, Thompsonville
- City & County Administrative Agencies, Thompsonville
- City & County Government, Thompsonville
- Commercial Equipment, Thompsonville
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- Commercial Printing Manufacturers, Thompsonville
- Communications Services, Thompsonville
- Community Services, Thompsonville
- Congregational Church, Thompsonville
- Construction, Thompsonville
- Construction Services, Thompsonville
- Consultants & Services, Thompsonville
- Convenience Stores, Thompsonville
- Convention & Meeting Facilities, Thompsonville - Meeting Rooms
- Country Cooking Restaurants, Thompsonville
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