- Baked Goods, Snacks & Sweets, Montoursville
- Bakeries, Montoursville
- Banks, Montoursville
- Banquet Halls, Montoursville
- Baptist Churches, Montoursville
- Barbers, Montoursville
- Bars, Montoursville
- Bars & Grills, Montoursville
- Beach & Water Related Services, Montoursville
- Beauty Salons, Montoursville
- Beer Taverns, Montoursville
- Beverage & Juice Bottlers Manufacturers, Montoursville
- Beverage Non-Alcoholic Manufacturers, Montoursville
- Billiard Supplies & Equipment, Montoursville - Pool Table
- Boiler - New & Used, Montoursville - Radiant Heating
- Bonds, Montoursville
- Books, Magazines & Newspapers Stores, Montoursville - Bookstores
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- Bottling Manufacturing, Montoursville
- Bronze Tablets, Montoursville
- Builders & Contractors, Montoursville
- Builders & Contractors - More, Montoursville
- Building & Home Inspection, Montoursville - Real Estate, Building, Land & House Inspection Service
- Building Construction Consultants, Montoursville - Construction Management & Consulting
- Building Hardware & Materials, Montoursville
- Building Materials, Montoursville - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Montoursville
- Business & Professional Associations, Montoursville
- Business Forms, Systems & Supplies, Montoursville
- Business Insurance, Montoursville
- Business Legal Services, Montoursville
- Business Machines Repair, Montoursville
- Business Management Consultants, Montoursville
- Business Services, Montoursville
- Business, Vocational & Technical, Montoursville
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