- Racing Including Track Operations, Alexandria
- Ready Mix Concrete, Alexandria - Concrete Suppliers, Dealers & Company
- Ready Mix Concrete Producers, Alexandria
- Real Estate, Alexandria - Agent, Broker & Companies
- Recreational Services, Alexandria
- Recycling Drop-Off Centers, Alexandria
- Religious Organizations, Alexandria
- Religious Practitioners, Alexandria
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- Repair Services, Alexandria
- Residential, Alexandria
- Residential Apartments, Alexandria
- Residential Construction Contractors, Alexandria - General Contractors
- Restaurants/Food & Dining, Alexandria
- Retail Book Stores, Alexandria
- Roofing Consultants, Alexandria - Roofing Companies
- Roofing Contractors, Alexandria - Roof Repair, Cleaning, Installation & Maintenance - Roofers
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