- Radio Stations & Broadcasting Companies, Kingston
- Radioactivity Detection Devices, Kingston
- Real Estate, Kingston - Agent, Broker & Companies
- Real Estate Appraiser, Kingston - Appraisal Services
- Real Estate Appraisers & Consulting Services, Kingston
- Real Estate Consultants, Kingston
- Real Estate Developers, Kingston
- Real Estate Management, Kingston
- Real Estate Services, Kingston
- Recreational Equipment Repair & Service, Kingston
- Recycling Scrap & Waste Materials, Kingston - Scrap Metal, etc
- Reducing Exercise & Weight Control Services, Kingston
- Refuse Collection & Disposal, Kingston
- Refuse Systems & Garbage Disposal, Kingston
- Rehabilitational Job Training Services, Kingston
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- Religious Organizations, Kingston
- Rental & Leasing Business Equipment, Kingston
- Repair Services, Kingston
- Residential, Kingston
- Residential Apartments, Kingston
- Residential Landfills, Kingston
- Restaurants/Food & Dining, Kingston
- Retirement Communities & Home, Assisted Living & Apartments, Kingston
- Rifle & Pistol Ranges, Kingston
- Road Construction, Kingston - Companies & Contractors
- Road Construction & Repair Contractors, Kingston
- Roofing Consultants, Kingston - Roofing Companies
- Roofing Contractors, Kingston - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- RV & Campers Repair & Service, Kingston
- RV Repair, Kingston - Recreational Vehicle
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