- Racing Car Supplies, Portsmouth
- Radiator Repair, Portsmouth - Gas Tank Repair
- Radio Stations & Broadcasting Companies, Portsmouth
- Railroad Ties, Portsmouth
- Reading Instruction Schools, Portsmouth
- Ready Mix Concrete, Portsmouth - Concrete Suppliers, Dealers & Company
- Ready Mix Concrete Producers, Portsmouth
- Real Estate, Portsmouth - Agent, Broker & Companies
- Real Estate Appraiser, Portsmouth - Appraisal Services
- Real Estate Appraisers & Consulting Services, Portsmouth
- Real Estate Consultants, Portsmouth
- Real Estate Developers, Portsmouth
- Real Estate Management, Portsmouth
- Real Estate Referral & Information Services, Portsmouth
- Real Estate Rental Information, Portsmouth
- Real Estate Services, Portsmouth
- Recycling Drop-Off Centers, Portsmouth
- Recycling Scrap & Waste Materials, Portsmouth - Scrap Metal, etc
- Refuse Collection & Disposal Services, Portsmouth
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- Refuse Systems & Garbage Disposal, Portsmouth
- Rehabilitation Centers, Products & Services, Portsmouth
- Rehabilitation Specialists, Portsmouth
- Relief Organizations, Portsmouth
- Religious Organizations, Portsmouth
- Rental & Leasing Business Equipment, Portsmouth
- Repair Services, Portsmouth
- Residential, Portsmouth
- Residential Apartments, Portsmouth
- Residential Construction Contractors, Portsmouth - General Contractors
- Restaurants/Food & Dining, Portsmouth
- Retirement & Estate Planning, Portsmouth
- Retirement Communities & Home, Assisted Living & Apartments, Portsmouth
- Retirement Planning Consultants & Services, Portsmouth
- Roofing Consultants, Portsmouth - Roofing Companies
- Roofing Contractors, Portsmouth - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Roofing Materials & Supplies, Portsmouth
- Rv Parks, Portsmouth
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