- Hair Care Professionals, Torrington
- Hamburger Restaurants, Torrington
- Hardware Stores, Torrington
- Harness, Saddles & Supplies, Torrington
- Hauling And Shipping, Torrington
- Health & Diet Food Products - Wholesale & Retail, Torrington
- Health & Medical, Torrington
- Health And Medical Centers, Torrington
- Health Care Information & Services, Torrington
- Health Care Plans, Torrington
- Health Insurance, Torrington
- Healthcare Providers, Practitioners & Professionals, Torrington
- Heating & Air-Conditioning Contractors, Torrington - HVAC Contractors - Installation, Repair, Replace Service, etc
- Heating & Plumbing Supplies Stores, Torrington
- Heating & Ventilating Contractors, Torrington
- Heating Contractors, Torrington - Heating Systems - Installation & Repair
- Heavy Haul Trucking Companies, Torrington - Heavy Equipment & Machinery Hauling & Transportation
- Hobby & Model Shops & Supplies, Torrington
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- Holiday & Seasonal Merchandise Stores & Products, Torrington
- Home Additions & Remodeling Contractors, Torrington - Refinishing & Restoration
- Home Decor Stores, Torrington - Home Decorations, Supplies & Accessories
- Home Health Care, Torrington - Agencies & Services
- Homeowners Insurance, Torrington
- Horse Stables, Torrington
- Horseback Riding Lessons & Instruction, Torrington - Horse Riding School
- Hospital Equipment Oxygen Therapy, Torrington
- Hospitals, Torrington
- Hot Dog Restaurants, Torrington
- Hotel Motel & Resort Reservations, Torrington
- Hotels & Motels, Torrington
- Household & Commercial Appliances Stores, Torrington
- Household Goods & Furniture Storage , Torrington
- Housing Authority, Torrington
- Hunting & Fishing Equipment, Supplies & Services, Torrington
- Hunting Equipment & Supplies Stores, Torrington - Air Guns, Calls, Lures, Knives & Gear
- Hunting Trapping & Game Propagation, Torrington
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