- Radon Testing & Services, Worthington
- Ready Mix Concrete, Worthington - Concrete Suppliers, Dealers & Company
- Ready Mix Concrete Producers, Worthington
- Real Estate, Worthington - Agent, Broker & Companies
- Real Estate Services, Worthington
- Rehabilitation Centers, Products & Services, Worthington
- Rehabilitation Specialists, Worthington
- Religious Organizations, Worthington
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- Repair Services, Worthington
- Residential Care Facilities, Worthington
- Restaurants/Food & Dining, Worthington
- Retaining Wall Contractors, Worthington - Build & Repair - Blocks, Concrete, Stones, etc
- Retirement Communities & Home, Assisted Living & Apartments, Worthington
- Riding & Rodeo Services, Worthington
- Road Construction, Worthington - Companies & Contractors
- Rooming & Boarding Houses, Worthington
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