- Racing Car Supplies, Ballston Spa
- Racing Including Track Operations, Ballston Spa
- Radio Stations & Broadcasting Companies, Ballston Spa
- Radon Testing & Services, Ballston Spa
- Real Estate, Ballston Spa - Agent, Broker & Companies
- Real Estate Developers, Ballston Spa
- Real Estate Management, Ballston Spa
- Real Estate Services, Ballston Spa
- Recreation Facilities Management, Ballston Spa
- Recreation Management Services, Ballston Spa
- Recreational Equipment & Supplies Companies, Ballston Spa
- Recreational Vehicles & Campers Rent & Lease, Ballston Spa
- Recycling Drop-Off Centers, Ballston Spa
- Reformed Churches, Ballston Spa
- Refrigerated Storage & Warehouse, Ballston Spa - Warehousing
- Religious Organizations, Ballston Spa
- Rental & Leasing Business Equipment, Ballston Spa
- Repair Services, Ballston Spa
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- Research & Development Engineers, Ballston Spa
- Research Services, Ballston Spa
- Residential, Ballston Spa
- Residential Apartments, Ballston Spa
- Residential Care Facilities, Ballston Spa
- Residential Construction Contractors, Ballston Spa - General Contractors
- Restaurant Equipment, Ballston Spa
- Restaurant Equipment & Supplies, Ballston Spa
- Restaurant Supplies & Equipment, Ballston Spa
- Restaurants/Food & Dining, Ballston Spa
- Retail Book Stores, Ballston Spa
- Retirement Communities & Home, Assisted Living & Apartments, Ballston Spa
- Riding & Rodeo Services, Ballston Spa
- Riding Apparel & Equipment, Ballston Spa
- Roofing Consultants, Ballston Spa - Roofing Companies
- Roofing Contractors, Ballston Spa - Roof Repair, Cleaning, Installation & Maintenance - Roofers
- Rooming & Boarding Houses, Ballston Spa
- Rvs Sales, Rental & Leasing, Ballston Spa
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