- Radiotelephone Communications, Dexter
- Real Estate, Dexter - Agent, Broker & Companies
- Real Estate Appraiser, Dexter - Appraisal Services
- Real Estate Appraisers & Consulting Services, Dexter
- Real Estate Services, Dexter
- Recycling Drop-Off Centers, Dexter
- Recycling Scrap & Waste Materials, Dexter - Scrap Metal, etc
- Refrigeration & Cooling Equipment, Parts & Supplies , Dexter - Water Cooler, Ice Machine, Beverage Dispenser, etc
- Refrigeration Repair & Service, Dexter - Ac, Freezer, Refrigerator Repair
- Rehabilitation Centers, Products & Services, Dexter
- Rehabilitation Specialists, Dexter
- Religious Organizations, Dexter
- Repair Services, Dexter
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- Research & Development Bureaus, Dexter - Commercial, Economic, Sociological & Educational Research
- Research Services, Dexter
- Residential, Dexter
- Residential Apartments, Dexter
- Residential Construction Contractors, Dexter - General Contractors
- Restaurant Equipment, Dexter
- Restaurants/Food & Dining, Dexter
- Retirement Communities & Home, Assisted Living & Apartments, Dexter
- Roofing & Siding Materials, Equipments & Supplies, Dexter - Wholesale, Manufacturers & Suppliers
- Roofing Consultants, Dexter - Roofing Companies
- Roofing Contractors, Dexter - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Roofing Materials & Supplies, Dexter
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