- Race Car Dealers, Paramount
- Radiator Coolant & Solvents, Paramount - Engine Coolant
- Radio Communications Equipment & Systems , Paramount
- Radio Equipment & Parts Stores & Dealers, Paramount
- Radiology Equipment & Services, Paramount - X-Ray Equipment & Supplies
- Real Estate, Paramount - Agent, Broker & Companies
- Real Estate Agent - Property Lessors, Paramount
- Real Estate Developers, Paramount
- Real Estate Inspectors, Paramount - Real Estate Inspection Service
- Real Estate Management, Paramount
- Real Estate Services, Paramount
- Recording Studio - Equipment & Rental, Paramount
- Recreational Good Manufacturers, Paramount
- Recycling Drop-Off Centers, Paramount
- Recycling Scrap & Waste Materials, Paramount - Scrap Metal, etc
- Reducing Exercise & Weight Control Services, Paramount
- Reformed Churches, Paramount
- Refrigerated Storage & Warehouse, Paramount - Warehousing
- Refrigeration Repair & Service, Paramount - Ac, Freezer, Refrigerator Repair
- Refrigerator Sales, Service & Repair, Paramount - Fridge
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- Religious Organizations, Paramount
- Repair Services, Paramount
- Research & Development Engineers, Paramount
- Research Services, Paramount
- Residential, Paramount
- Residential Apartments, Paramount
- Residential Architect, Paramount
- Residential Construction Contractors, Paramount - General Contractors
- Restaurant & Food Service Management Services, Paramount
- Restaurant Architects, Paramount
- Restaurant Management & Consulting, Paramount - Food Facilities Consultants
- Restaurants - Breakfast Brunch Lunch, Paramount
- Restaurants/Food & Dining, Paramount
- Riding & Rodeo Services, Paramount
- Roofing Consultants, Paramount - Roofing Companies
- Roofing Contractors, Paramount - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Roofing Materials & Supplies, Paramount
- Rubber Manufacturers Supplies, Paramount
- Rubber Products - Retail, Paramount
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