- Radio & Tv Communications Equipment Manufacturers, Melville
- Radiologists, Melville - Radiology Doctors, Physicians & Surgeons
- Real Estate, Melville - Agent, Broker & Companies
- Real Estate Agent & Broker Services, Melville
- Real Estate Agent - Property Lessors, Melville
- Real Estate Appraiser, Melville - Appraisal Services
- Real Estate Appraisers & Consulting Services, Melville
- Real Estate Attorneys & Lawyers, Melville
- Real Estate Attorneys & Lawyers, Melville
- Real Estate Broker, Melville
- Real Estate Consultants, Melville
- Real Estate Developers, Melville
- Real Estate Lawyers & Attorneys, Melville
- Real Estate Management, Melville
- Real Estate Office Buildings Warehouses & Factories, Melville
- Real Estate Properties, Melville
- Real Estate Services, Melville
- Record Storage, Destruction & Management, Melville
- Rehabilitation Centers, Products & Services, Melville
- Rehabilitation Specialists, Melville
- Rehabilitational Job Training Services, Melville
- Religious Organizations, Melville
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- Rental & Leasing Business Equipment, Melville
- Repair Services, Melville
- Research & Development Bureaus, Melville - Commercial, Economic, Sociological & Educational Research
- Research & Development Labs, Melville - Laboratories
- Research Services, Melville
- Residential, Melville
- Residential Apartments, Melville
- Residential Care Facilities, Melville
- Residential Construction Contractors, Melville - General Contractors
- Resorts & Hotels, Melville
- Restaurant Information & Referral Service, Melville
- Restaurants/Food & Dining, Melville
- Retail Book Stores, Melville
- Retirement & Estate Planning, Melville
- Retirement Communities & Home, Assisted Living & Apartments, Melville
- Retirement Planning Consultants & Services, Melville
- Riding & Rodeo Services, Melville
- Roofing Consultants, Melville - Roofing Companies
- Roofing Contractors, Melville - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Roofing Materials & Supplies, Melville
- Rvs Sales, Rental & Leasing, Melville
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