- Rabbis, East Northport
- Radiator Coolant & Solvents, East Northport - Engine Coolant
- Radio & Television Repair Shops , East Northport - TV Repair
- Radio & Tv Communications Equipment Manufacturers, East Northport
- Real Estate, East Northport - Agent, Broker & Companies
- Real Estate Appraiser, East Northport - Appraisal Services
- Real Estate Appraisers & Consulting Services, East Northport
- Real Estate Services, East Northport
- Recreational Equipment & Supplies Companies, East Northport
- Recycling Drop-Off Centers, East Northport
- Recycling Scrap & Waste Materials, East Northport - Scrap Metal, etc
- Refrigeration & Cooling Equipment, Parts & Supplies , East Northport - Water Cooler, Ice Machine, Beverage Dispenser, etc
- Refrigeration Repair & Service, East Northport - Ac, Freezer, Refrigerator Repair
- Refrigerator Sales, Service & Repair, East Northport - Fridge
- Religious Education, East Northport
- Religious Goods & Church Supplies Stores, East Northport
- Religious Organizations, East Northport
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- Religious Practitioners, East Northport
- Repair Services, East Northport
- Research Services, East Northport
- Restaurant & Lounge, Bar, Or Pub, East Northport
- Restaurants/Food & Dining, East Northport
- Retail Book Stores, East Northport
- Retaining Wall Contractors, East Northport - Build & Repair - Blocks, Concrete, Stones, etc
- Retirement & Estate Planning, East Northport
- Retirement Communities & Home, Assisted Living & Apartments, East Northport
- Retirement Planning Consultants & Services, East Northport
- Riding & Rodeo Services, East Northport
- Riding Apparel & Equipment, East Northport
- Roadside Assistance, Road Service & Towing Service, East Northport
- Roofing Consultants, East Northport - Roofing Companies
- Roofing Contractors, East Northport - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Roofing Materials & Supplies, East Northport
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