- Race Car Dealers, Portland
- Race Tracks, Portland
- Racing Car Supplies, Portland
- Racing Including Track Operations, Portland
- Racquet Handball Squash Aeroball & Badminton Clubs, Portland
- Racquetball Courts, Portland
- Radiation Physics Services, Portland
- Radiator Coolant & Solvents, Portland - Engine Coolant
- Radiator Repair, Portland - Gas Tank Repair
- Radiators Heating, Portland
- Radio & Television Repair Shops , Portland - TV Repair
- Radio Communications Equipment & Systems , Portland
- Radio Equipment & Parts Stores & Dealers, Portland
- Radio Station Equipment & Systems, Portland
- Radio Stations & Broadcast Companies, Portland - Radio, Television & Publishers Representatives
- Radio Stations & Broadcasting Companies, Portland
- Radiologists, Portland - Radiology Doctors, Physicians & Surgeons
- Radiology Equipment & Services, Portland - X-Ray Equipment & Supplies
- Radiotelephone Communications, Portland
- Radon Testing & Services, Portland
- Railroad, Portland - Commuter & Passenger Transport
- Railroad & Subway Construction Contractors, Portland
- Railroad Companies, Portland
- Railroad Contractors, Portland
- Railroad Engineer, Portland
- Railroad Equipment & Supplies Manufacturers, Portland
- Railroad Loading & Unloading, Portland
- Railroad Services, Portland
- Rainwear Retail, Portland
- Range & Oven Repair, Service & Sales, Portland
- Rape Victim Services, Portland
- Reading Instruction Schools, Portland
- Ready Mix Concrete, Portland - Concrete Suppliers, Dealers & Company
- Ready Mix Concrete Producers, Portland
- Real Estate, Portland - Agent, Broker & Companies
- Real Estate & Insurance Schools, Portland
- Real Estate Agencies, Portland
- Real Estate Agent & Broker Services, Portland
- Real Estate Agent - Property Lessors, Portland
- Real Estate Appraiser, Portland - Appraisal Services
- Real Estate Appraisers & Consulting Services, Portland
- Real Estate Attorneys & Lawyers, Portland
- Real Estate Attorneys & Lawyers, Portland
- Real Estate Broker, Portland
- Real Estate Consultants, Portland
- Real Estate Developers, Portland
- Real Estate Investment Trusts, Portland
- Real Estate Lawyers & Attorneys, Portland
- Real Estate Loans & Contracts, Portland
- Real Estate Management, Portland
- Real Estate Properties, Portland
- Real Estate Property Investment Properties, Portland
- Real Estate Recreational & Resort, Portland
- Real Estate Rentals, Portland
- Real Estate Services, Portland
- Real Estate Services Franchises, Portland
- Record Destruction Service, Portland
- Record Labels, Portland - Record Companies
- Record Storage, Destruction & Management, Portland
- Recorded And Or Live Sound Effects, Portland
- Recording Instruments Industrial & Scientific, Portland
- Recording Studio - Equipment & Rental, Portland
- Recording Studio Equipment, Portland
- Recording Studio Service - Sound & Video, Portland
- Records, Tapes, Cd & Dvd Manufacturers, Portland
- Records, Tapes, CDs - Used & Vintage, Portland
- Records, Tapes, Compact Discs Wholesale, Portland
- Recreation Management Services, Portland
- Recreational Equipment & Supplies Companies, Portland
- Recreational Equipment Repair & Service, Portland
- Recreational Good Manufacturers, Portland
- Recreational Organizations, Portland
- Recreational Services, Portland
- Recreational Vehicles & Campers Rent & Lease, Portland
- Recycling Drop-Off Centers, Portland
- Recycling Scrap & Waste Materials, Portland - Scrap Metal, etc
- Red Wing Shoes, Portland
- Reducing Exercise & Weight Control Services, Portland
- Refiners & Smelters Metals, Portland
- Reflexologists, Portland
- Reforestation Service & Equipment, Portland
- Refractory Systems & Materials, Portland
- Refrigerated Beverage Dispenser, Portland - Water Coolers Equipment & Supplies
- Refrigerated Storage & Warehouse, Portland - Warehousing
- Refrigerated Truck, Portland
- Refrigeration & Air Conditioning Contractors, Portland - Installation, Repair, Sales & Service
- Refrigeration & Cooling Equipment, Parts & Supplies , Portland - Water Cooler, Ice Machine, Beverage Dispenser, etc
- Refrigeration Repair & Service, Portland - Ac, Freezer, Refrigerator Repair
- Refrigerator & Freezer Equipment, Parts & Supplies, Portland
- Refrigerator Sales, Service & Repair, Portland - Fridge
- Refugee Programs, Resettlement & Health Services, Portland
- Refuse Collection & Disposal Services, Portland
- Refuse Systems & Garbage Disposal, Portland
- Registered Education Savings Plan, Portland
- Rehabilitation Centers, Portland
- Rehabilitation Centers, Products & Services, Portland
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- Rehabilitation Specialists, Portland
- Rehabilitational Job Training Services, Portland
- Relief Organizations, Portland
- Religious Counseling, Portland
- Religious Education, Portland
- Religious Goods & Church Supplies Stores, Portland
- Religious Organizations, Portland
- Religious Practitioners, Portland
- Religious Services, Portland
- Relocation Services, Portland
- Rendering Companies, Portland
- Rental & Leasing Business Equipment, Portland
- Rental Property Management, Portland
- Repair Services, Portland
- Repossession Services, Portland
- Reprographic Services, Portland
- Research & Development Bureaus, Portland - Commercial, Economic, Sociological & Educational Research
- Research & Development Labs, Portland - Laboratories
- Research Clinics, Portland
- Research Film Laboratories & Film Services Motion Pictures, Portland
- Research Services, Portland
- Residential, Portland
- Residential Apartments, Portland
- Residential Architect, Portland
- Residential Architectural Designers, Portland
- Residential Care Facilities, Portland
- Residential Construction Contractors, Portland - General Contractors
- Residential Electricians, Portland - Electric Contractors
- Residential Landfills, Portland
- Residential Real Estate - Rental & Leasing, Portland
- Residential Real Estate Companies, Portland
- Resorts & Hotels, Portland
- Resource Centers, Portland
- Resource Consultants, Portland
- Restaurant & Food Service Management Services, Portland
- Restaurant & Lounge, Bar, Or Pub, Portland
- Restaurant Equipment, Portland
- Restaurant Equipment & Supplies, Portland
- Restaurant Equipment & Supplies Manufacturers, Portland
- Restaurant Equipment Cleaning, Portland - Restaurant Cleaners
- Restaurant Equipment Repair & Service, Portland - Bakery, Beverage, Food & Soda Fountain Equipment
- Restaurant Lobster, Portland
- Restaurant Management & Consulting, Portland - Food Facilities Consultants
- Restaurant Supplies & Equipment, Portland
- Restaurants - Breakfast Brunch Lunch, Portland
- Restaurants/Food & Dining, Portland
- Restoration Contractors, Portland
- Resume Service, Portland
- Retail Book Stores, Portland
- Retail Recovery Services, Portland
- Retaining Wall Contractors, Portland - Build & Repair - Blocks, Concrete, Stones, etc
- Retirement & Estate Planning, Portland
- Retirement Communities & Home, Assisted Living & Apartments, Portland
- Retirement Home Referral Service, Portland - Nursing Home & Care Facilities Referrals & Information
- Retirement Homes, Portland
- Retirement Planning Consultants & Services, Portland
- Retirement Planning Services, Portland
- Retreat Facilities & Houses, Portland
- Reweavers Garment Services, Portland
- Rheumatologists, Portland - Rheumatology Doctors, Physicians & Surgeons
- Ride Share Information, Portland
- Riding & Rodeo Services, Portland
- Riding Apparel & Equipment, Portland
- Riding Equipment, Portland
- Rifle & Pistol Ranges, Portland
- Rigging Equipment & Supplies, Portland
- Rigging Service & Crane Hoisting, Portland
- Risk Management Consultants, Portland
- Road Construction, Portland - Companies & Contractors
- Road Construction & Repair Contractors, Portland
- Road Construction Equipment & Machinery, Portland
- Roadside Assistance, Road Service & Towing Service, Portland
- Robots & Robotics System, Portland
- Rock Shops, Portland
- Rodeo & Equestrian Equipment & Supplies, Portland
- Rods, Springs & Suspension Equipment & Supplies, Portland
- Roof Cleaning & Maintenance, Portland - Roofing Services
- Roof Repair, Portland - Roofing Repair Services
- Roofing & Siding Materials, Equipments & Supplies, Portland - Wholesale, Manufacturers & Suppliers
- Roofing & Siding Veneers, Portland
- Roofing Consultants, Portland - Roofing Companies
- Roofing Contractors, Portland - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Roofing Materials & Supplies, Portland
- Room Additions, Portland - Room Addition Contractors
- Rooming & Boarding Houses, Portland
- Rubber & Plastic Products, Portland
- Rubber Products, Portland
- Rubber Products - Manufacturers, Portland
- Rubber Products - Retail, Portland
- Rubber Stamps, Portland
- Russian Restaurants, Portland
- RV & Campers Repair & Service, Portland
- Rv Parks, Portland
- RV Repair, Portland - Recreational Vehicle
- Rvs Sales, Rental & Leasing, Portland
- Ryder Truck Rental , Portland - Ryder Moving
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