- Radio Stations & Broadcasting Companies, Sheffield
- Radiologists, Sheffield - Radiology Doctors, Physicians & Surgeons
- Radiotelephone Communications, Sheffield
- Real Estate, Sheffield - Agent, Broker & Companies
- Real Estate Services, Sheffield
- Recording Studio Service - Sound & Video, Sheffield
- Recycling Drop-Off Centers, Sheffield
- Recycling Scrap & Waste Materials, Sheffield - Scrap Metal, etc
- Refrigeration & Air Conditioning Contractors, Sheffield - Installation, Repair, Sales & Service
- Refrigeration & Cooling Equipment, Parts & Supplies , Sheffield - Water Cooler, Ice Machine, Beverage Dispenser, etc
- Refuse Systems & Garbage Disposal, Sheffield
- Rehabilitation Centers, Products & Services, Sheffield
- Rehabilitation Specialists, Sheffield
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- Rehabilitational Job Training Services, Sheffield
- Religious Organizations, Sheffield
- Repair Services, Sheffield
- Residential, Sheffield
- Residential Apartments, Sheffield
- Residential Care Facilities, Sheffield
- Restaurant & Lounge, Bar, Or Pub, Sheffield
- Restaurants/Food & Dining, Sheffield
- Retirement Communities & Home, Assisted Living & Apartments, Sheffield
- Roadside Assistance, Road Service & Towing Service, Sheffield
- Roofing Consultants, Sheffield - Roofing Companies
- Roofing Contractors, Sheffield - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Roofing Materials & Supplies, Sheffield
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