| Restaurants in Nitro, WV (14) | Retreat Houses in Nitro, WV (14) |
| Antiques - Dealers in Nitro, WV (11) | Churches in Nitro, WV (10) |
| Beauty Shop in Nitro, WV (9) | Beauty Salons in Nitro, WV (6) |
| Clergy in Nitro, WV (6) | General Contractors in Nitro, WV (6) |
| Government Offices in Nitro, WV (6) | Ice Cream Parlors in Nitro, WV (6) |
| New House Construction Contractor in Nitro, WV (6) | Storage - Household & Commercial in Nitro, WV (6) |
| Automobile Dealers - New Cars in Nitro, WV (5) | Business Services in Nitro, WV (4) |
| Insurance in Nitro, WV (4) | Labor Organizations in Nitro, WV (4) |
| Misc Personal Services Farm Labor Contractor in Nitro, WV (4) | Physicians & Surgeons in Nitro, WV (4) |
| Accountants in Nitro, WV (3) | Air Conditioning Contractors & Systems in Nitro, WV (3) |
| Air Water Waste Management in Nitro, WV (3) | Auto Parts & Machine Shop in Nitro, WV (3) |
| Automobile Body - Repairing & Painting in Nitro, WV (3) | Automobile Dealers - Used Cars in Nitro, WV (3) |
| Automobile Repairing & Service in Nitro, WV (3) | Building Materials in Nitro, WV (3) |
| Chemicals (Wholesale) in Nitro, WV (3) | Consultants - Business in Nitro, WV (3) |
| Contractors - Supplies in Nitro, WV (3) | Credit Unions in Nitro, WV (3) |
| Drug Store in Nitro, WV (3) | Elementary Secondary School in Nitro, WV (3) |
| Fraternal Organizations in Nitro, WV (3) | Home Contractor in Nitro, WV (3) |
| Logistics in Nitro, WV (3) | Machine Shops in Nitro, WV (3) |
| Mobile Homes - Dealers in Nitro, WV (3) | Mobile Homes Construction in Nitro, WV (3) |
| Painters in Nitro, WV (3) | Pharmacies in Nitro, WV (3) |
| Plumbing Heating AC Contractor in Nitro, WV (3) | Printers in Nitro, WV (3) |
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| Special Warehouse Storage Oil Gas Exploration Services in Nitro, WV (3) | State Government - Conservation Depts in Nitro, WV (3) |
| Tax Return Preparation & Filing in Nitro, WV (3) | Tax Return Preparation Services in Nitro, WV (3) |
| Truck - Repairing & Service in Nitro, WV (3) | Trucking in Nitro, WV (3) |
| Trucking - Liquid & Dry Bulk in Nitro, WV (3) | Trucking Hauling Contractor in Nitro, WV (3) |
| Trucking, Except Local in Nitro, WV (3) | Used Automobiles & Cars in Nitro, WV (3) |
| Whol Industrial Equipment Repair Services Plumbing Heat in Nitro, WV (3) | Wholesale Auto Parts in Nitro, WV (3) |
| Accounting Auditing Bookkeeping in Nitro, WV (2) | Apartments in Nitro, WV (2) |
| Apartments in Nitro, WV (2) | Attorneys & Lawyers in Nitro, WV (2) |
| Barbers in Nitro, WV (2) | Bars in Nitro, WV (2) |
| Bulk Fuel Distribution in Nitro, WV (2) | Business Consulting Services in Nitro, WV (2) |
| Carpet Upholstery Cleaning in Nitro, WV (2) | Caskets (Wholesale) in Nitro, WV (2) |
| Chemicals - Manufacturers in Nitro, WV (2) | Compressors - Air & Gas (Wholesale) in Nitro, WV (2) |
| Computers - System Designers & Consultants in Nitro, WV (2) | Contractors - Equipment Supplies Renting in Nitro, WV (2) |
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| Dentists in Nitro, WV (2) | Diner in Nitro, WV (2) |
| Distribution Services in Nitro, WV (2) | Electric Equipment & Supplies - Wholesale in Nitro, WV (2) |
| Federal Credit Union in Nitro, WV (2) | Fire Extinguishers (Wholesale) in Nitro, WV (2) |
| Grocery - Retail in Nitro, WV (2) | Heavy Construction Engineering Services in Nitro, WV (2) |
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| Hospital Equipment & Supplies (Whol) in Nitro, WV (2) | Installs Floor Coverings in Nitro, WV (2) |
| Insurance Agent Broker in Nitro, WV (2) | Legal Services in Nitro, WV (2) |
| National Commercial Bank in Nitro, WV (2) | New Used Automobiles in Nitro, WV (2) |
| Optometrist's in Nitro, WV (2) | Personal Care Facility in Nitro, WV (2) |
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| Real Estate Agent Construction in Nitro, WV (2) | Records Tapes & Compact Discs - Retail in Nitro, WV (2) |
| Refrigeration Service Repair Plumbing Heating Air Cond in Nitro, WV (2) | Religious Organization in Nitro, WV (2) |
| Restaurant in Nitro, WV (2) | Schools in Nitro, WV (2) |
| Screen Printing in Nitro, WV (2) | Screen Printing & Sign Painting & Lettering Shop in Nitro, WV (2) |
