- Radio & Television Repair Shops , Sewickley - TV Repair
- Radio Stations & Broadcasting Companies, Sewickley
- Radon Testing & Services, Sewickley
- Ready Mix Concrete, Sewickley - Concrete Suppliers, Dealers & Company
- Ready Mix Concrete Producers, Sewickley
- Real Estate, Sewickley - Agent, Broker & Companies
- Real Estate Appraiser, Sewickley - Appraisal Services
- Real Estate Appraisers & Consulting Services, Sewickley
- Real Estate Attorneys & Lawyers, Sewickley
- Real Estate Developers, Sewickley
- Real Estate Lawyers & Attorneys, Sewickley
- Real Estate Management, Sewickley
- Real Estate Services, Sewickley
- Real Estate Services Franchises, Sewickley
- Recreational Services, Sewickley
- Refuse Collection & Disposal Services, Sewickley
- Refuse Systems & Garbage Disposal, Sewickley
- Rehabilitation Centers, Products & Services, Sewickley
- Rehabilitation Specialists, Sewickley
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- Rehabilitational Job Training Services, Sewickley
- Religious Education, Sewickley
- Religious Goods & Church Supplies Stores, Sewickley
- Religious Organizations, Sewickley
- Religious Practitioners, Sewickley
- Religious Science Churches, Sewickley
- Repair Services, Sewickley
- Research & Development Labs, Sewickley - Laboratories
- Research Services, Sewickley
- Residential, Sewickley
- Residential Apartments, Sewickley
- Residential Care Facilities, Sewickley
- Residential Construction Contractors, Sewickley - General Contractors
- Restaurants/Food & Dining, Sewickley
- Retail Book Stores, Sewickley
- Retaining Wall Contractors, Sewickley - Build & Repair - Blocks, Concrete, Stones, etc
- Retirement Communities & Home, Assisted Living & Apartments, Sewickley
- Roofing Consultants, Sewickley - Roofing Companies
- Roofing Contractors, Sewickley - Roof Repair, Cleaning, Installation & Maintenance - Roofers
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