- Race Car Dealers, Derry
- Racing Car Supplies, Derry
- Racing Including Track Operations, Derry
- Radiator Coolant & Solvents, Derry - Engine Coolant
- Radio Stations & Broadcasting Companies, Derry
- Radon Testing & Services, Derry
- Rape Victim Services, Derry
- Real Estate, Derry - Agent, Broker & Companies
- Real Estate Agent & Broker Services, Derry
- Real Estate Agent - Property Lessors, Derry
- Real Estate Broker, Derry
- Real Estate Developers, Derry
- Real Estate Rentals, Derry
- Real Estate Services, Derry
- Recycling Scrap & Waste Materials, Derry - Scrap Metal, etc
- Reducing Exercise & Weight Control Services, Derry
- Refrigerator Sales, Service & Repair, Derry - Fridge
- Rehabilitation Centers, Products & Services, Derry
- Rehabilitation Specialists, Derry
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- Religious Organizations, Derry
- Religious Services, Derry
- Repair Services, Derry
- Research & Development Labs, Derry - Laboratories
- Research Services, Derry
- Residential, Derry
- Residential Apartments, Derry
- Residential Care Facilities, Derry
- Residential Construction Contractors, Derry - General Contractors
- Residential Painting Contractors, Derry - Painters
- Restaurant & Lounge, Bar, Or Pub, Derry
- Restaurants/Food & Dining, Derry
- Retaining Wall Contractors, Derry - Build & Repair - Blocks, Concrete, Stones, etc
- Retirement Communities & Home, Assisted Living & Apartments, Derry
- Riding & Rodeo Services, Derry
- Rigging Service & Crane Hoisting, Derry
- Roofing Consultants, Derry - Roofing Companies
- Roofing Contractors, Derry - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Rv Parks, Derry
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