- Radiator Coolant & Solvents, Whippany - Engine Coolant
- Radio & Television Repair Shops , Whippany - TV Repair
- Radio Communications Equipment & Systems , Whippany
- Railroad & Subway Construction Contractors, Whippany
- Railroad Contractors, Whippany
- Real Estate, Whippany - Agent, Broker & Companies
- Real Estate Appraiser, Whippany - Appraisal Services
- Real Estate Appraisers & Consulting Services, Whippany
- Real Estate Management, Whippany
- Real Estate Services, Whippany
- Record Storage, Destruction & Management, Whippany
- Recreational Good Manufacturers, Whippany
- Reducing Exercise & Weight Control Services, Whippany
- Refrigeration & Cooling Equipment, Parts & Supplies , Whippany - Water Cooler, Ice Machine, Beverage Dispenser, etc
- Religious Education, Whippany
- Religious Organizations, Whippany
- Religious Practitioners, Whippany
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- Relocation Services, Whippany
- Rental & Leasing Business Equipment, Whippany
- Repair Services, Whippany
- Research & Development Bureaus, Whippany - Commercial, Economic, Sociological & Educational Research
- Research & Development Labs, Whippany - Laboratories
- Research Services, Whippany
- Residential Architect, Whippany
- Residential Construction Contractors, Whippany - General Contractors
- Resorts & Hotels, Whippany
- Restaurant & Food Service Management Services, Whippany
- Restaurant Supplies & Equipment, Whippany
- Restaurants/Food & Dining, Whippany
- Retaining Wall Contractors, Whippany - Build & Repair - Blocks, Concrete, Stones, etc
- Retirement Communities & Home, Assisted Living & Apartments, Whippany
- Robots & Robotics System, Whippany
- Roofing Consultants, Whippany - Roofing Companies
- Roofing Contractors, Whippany - Roof Repair, Cleaning, Installation & Maintenance - Roofers
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