- Radio & Television Repair Shops , Newton - TV Repair
- Radiology Equipment & Services, Newton - X-Ray Equipment & Supplies
- Railroad Companies, Newton
- Real Estate, Newton - Agent, Broker & Companies
- Real Estate Agent - Property Lessors, Newton
- Real Estate Appraiser, Newton - Appraisal Services
- Real Estate Appraisers & Consulting Services, Newton
- Real Estate Consultants, Newton
- Real Estate Developers, Newton
- Real Estate Management, Newton
- Real Estate Services, Newton
- Recycling Scrap & Waste Materials, Newton - Scrap Metal, etc
- Reducing Exercise & Weight Control Services, Newton
- Refuse Collection & Disposal, Newton
- Refuse Systems & Garbage Disposal, Newton
- Rehabilitation Centers, Products & Services, Newton
- Rehabilitation Specialists, Newton
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- Religious Organizations, Newton
- Rental & Leasing Business Equipment, Newton
- Repair Services, Newton
- Research & Development Engineers, Newton
- Research Services, Newton
- Residential, Newton
- Residential Apartments, Newton
- Residential Care Facilities, Newton
- Residential Painting Contractors, Newton - Painters
- Restaurant Management & Consulting, Newton - Food Facilities Consultants
- Restaurants/Food & Dining, Newton
- Restoration Contractors, Newton
- Retail Book Stores, Newton
- Retirement Communities & Home, Assisted Living & Apartments, Newton
- Robots & Robotics System, Newton
- Roofing Consultants, Newton - Roofing Companies
- Roofing Contractors, Newton - Roof Repair, Cleaning, Installation & Maintenance - Roofers
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