- Racing Car Supplies, North Kingstown
- Radio Stations & Broadcasting Companies, North Kingstown
- Railroad Companies, North Kingstown
- Ready Mix Concrete, North Kingstown - Concrete Suppliers, Dealers & Company
- Ready Mix Concrete Producers, North Kingstown
- Real Estate, North Kingstown - Agent, Broker & Companies
- Real Estate Agent & Broker Services, North Kingstown
- Real Estate Agent - Property Lessors, North Kingstown
- Real Estate Appraisers & Consulting Services, North Kingstown
- Real Estate Broker, North Kingstown
- Real Estate Consultants, North Kingstown
- Real Estate Developers, North Kingstown
- Real Estate Management, North Kingstown
- Real Estate Services, North Kingstown
- Recording Studio Service - Sound & Video, North Kingstown
- Records, Tapes, CDs - Used & Vintage, North Kingstown
- Recreational Equipment & Supplies Companies, North Kingstown
- Recreational Equipment Repair & Service, North Kingstown
- Recycling Scrap & Waste Materials, North Kingstown - Scrap Metal, etc
- Refreshment Stands, North Kingstown
- Refuse Collection & Disposal Services, North Kingstown
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- Rehabilitation Centers, North Kingstown
- Rehabilitation Centers, Products & Services, North Kingstown
- Rehabilitation Specialists, North Kingstown
- Religious Organizations, North Kingstown
- Repair Services, North Kingstown
- Research Services, North Kingstown
- Residential, North Kingstown
- Residential Apartments, North Kingstown
- Residential Construction Contractors, North Kingstown - General Contractors
- Residential Lighting Fixtures Manufacturers, North Kingstown
- Resorts & Hotels, North Kingstown
- Restaurant & Lounge, Bar, Or Pub, North Kingstown
- Restaurants - Breakfast Brunch Lunch, North Kingstown
- Restaurants/Food & Dining, North Kingstown
- Riding & Rodeo Services, North Kingstown
- Road Construction, North Kingstown - Companies & Contractors
- Road Construction & Repair Contractors, North Kingstown
- Roast Beef Restaurants, North Kingstown
- Rodeo & Equestrian Equipment & Supplies, North Kingstown
- Roofing Materials & Supplies, North Kingstown
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