- Cafe Restaurants, Petersburg
- Campgrounds, Petersburg
- Carpet Rug & Upholstery Cleaners, Petersburg
- Casual Dining Restaurants, Petersburg
- Caterers Food Services, Petersburg
- Chiropractor, Petersburg
- Churches 1 Of 3, Petersburg
- City & County Government, Petersburg
- Cleaning & Maintenance Services, Petersburg
- Clergy, Petersburg
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- CNC Machine Shop, Petersburg
- Colleges & Universities, Petersburg
- Community Services, Petersburg
- Computer & Laptop Repair, Petersburg - PC Repair Services
- Computer Networks, Petersburg - Design & Systems
- Computer Repair, Petersburg
- Construction, Petersburg
- Construction Services, Petersburg
- Consultants & Services, Petersburg
- Convenience Stores, Petersburg
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