- Racing Including Track Operations, Salem
- Radio Stations & Broadcasting Companies, Salem
- Radiologists, Salem - Radiology Doctors, Physicians & Surgeons
- Ready Mix Concrete, Salem - Concrete Suppliers, Dealers & Company
- Ready Mix Concrete Producers, Salem
- Real Estate, Salem - Agent, Broker & Companies
- Real Estate Services, Salem
- Refrigeration Repair & Service, Salem - Ac, Freezer, Refrigerator Repair
- Rehabilitation Centers, Products & Services, Salem
- Rehabilitation Specialists, Salem
- Rehabilitational Job Training Services, Salem
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- Religious Organizations, Salem
- Repair Services, Salem
- Residential, Salem
- Residential Apartments, Salem
- Residential Care Facilities, Salem
- Residential Construction Contractors, Salem - General Contractors
- Residential Landfills, Salem
- Restaurants/Food & Dining, Salem
- Road Construction, Salem - Companies & Contractors
- Roofing Consultants, Salem - Roofing Companies
- Roofing Contractors, Salem - Roof Repair, Cleaning, Installation & Maintenance - Roofers
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