- Racing Car Supplies, Warrington
- Radiotelephone Communications, Warrington
- Real Estate, Warrington - Agent, Broker & Companies
- Real Estate Developers, Warrington
- Real Estate Management, Warrington
- Real Estate Services, Warrington
- Reducing Exercise & Weight Control Services, Warrington
- Refrigerator & Freezer Equipment, Parts & Supplies, Warrington
- Refrigerator Sales, Service & Repair, Warrington - Fridge
- Rehabilitation Centers, Products & Services, Warrington
- Rehabilitation Specialists, Warrington
- Religious Organizations, Warrington
- Repair Services, Warrington
- Research & Development Bureaus, Warrington - Commercial, Economic, Sociological & Educational Research
- Research Services, Warrington
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- Residential, Warrington
- Residential Apartments, Warrington
- Residential Care Facilities, Warrington
- Residential Construction Contractors, Warrington - General Contractors
- Restaurant & Lounge, Bar, Or Pub, Warrington
- Restaurants/Food & Dining, Warrington
- Retirement & Estate Planning, Warrington
- Retirement Communities & Home, Assisted Living & Apartments, Warrington
- Retirement Planning Consultants & Services, Warrington
- Riding & Rodeo Services, Warrington
- Riding Equipment, Warrington
- Rodeo & Equestrian Equipment & Supplies, Warrington
- Roofing Consultants, Warrington - Roofing Companies
- Roofing Contractors, Warrington - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Rubber Products - Manufacturers, Warrington
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