- Radio Stations & Broadcasting Companies, Hartsville
- Real Estate, Hartsville - Agent, Broker & Companies
- Real Estate Developers, Hartsville
- Real Estate Services, Hartsville
- Record Labels, Hartsville - Record Companies
- Refrigeration & Cooling Equipment, Parts & Supplies , Hartsville - Water Cooler, Ice Machine, Beverage Dispenser, etc
- Rehabilitation Centers, Products & Services, Hartsville
- Rehabilitation Specialists, Hartsville
- Religious Organizations, Hartsville
- Research Services, Hartsville
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- Residential, Hartsville
- Residential Apartments, Hartsville
- Residential Care Facilities, Hartsville
- Residential Construction Contractors, Hartsville - General Contractors
- Restaurant Equipment & Supplies, Hartsville
- Restaurants/Food & Dining, Hartsville
- Roofing Consultants, Hartsville - Roofing Companies
- Roofing Contractors, Hartsville - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Rv Parks, Hartsville
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