- Racing Including Track Operations, Newton
- Radio Stations & Broadcasting Companies, Newton
- Railroad Companies, Newton
- Ready Mix Concrete, Newton - Concrete Suppliers, Dealers & Company
- Ready Mix Concrete Producers, Newton
- Real Estate, Newton - Agent, Broker & Companies
- Real Estate Agencies, Newton
- Real Estate Appraiser, Newton - Appraisal Services
- Real Estate Appraisers & Consulting Services, Newton
- Real Estate Services, Newton
- Recycling Drop-Off Centers, Newton
- Recycling Scrap & Waste Materials, Newton - Scrap Metal, etc
- Reformed Churches, Newton
- Refrigeration & Air Conditioning Contractors, Newton - Installation, Repair, Sales & Service
- Refrigerator Sales, Service & Repair, Newton - Fridge
- Refuse Collection & Disposal Services, Newton
- Refuse Systems & Garbage Disposal, Newton
- Rehabilitation Centers, Products & Services, Newton
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- Rehabilitation Specialists, Newton
- Relief Organizations, Newton
- Religious Education, Newton
- Religious Organizations, Newton
- Religious Practitioners, Newton
- Repair Services, Newton
- Research Services, Newton
- Residential, Newton
- Residential Apartments, Newton
- Residential Care Facilities, Newton
- Residential Construction Contractors, Newton - General Contractors
- Restaurants/Food & Dining, Newton
- Retail Book Stores, Newton
- Retaining Wall Contractors, Newton - Build & Repair - Blocks, Concrete, Stones, etc
- Retirement Communities & Home, Assisted Living & Apartments, Newton
- Rock Shops, Newton
- Roofing Consultants, Newton - Roofing Companies
- Roofing Contractors, Newton - Roof Repair, Cleaning, Installation & Maintenance - Roofers
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