- Backhoe & Bulldozer Contractors, Dubois - Backhoe & Dozer Services
- Bakeries, Dubois
- Banks, Dubois
- Baptist Churches, Dubois
- Barbecue Grills & Supplies, Dubois
- Bars, Dubois
- Beads Decor, Dubois
- Beauty Salons, Dubois
- Bed & Breakfast, Dubois
- Beer Taverns, Dubois
- Beverage Stores, Dubois
- Bistros, Dubois
- Bookkeeping Services Licensed, Dubois
- Bookkeeping Systems & Services, Dubois
- Books, Magazines & Newspapers Stores, Dubois - Bookstores
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- Bricks, Blocks & Stone Products, Dubois - Companies, Wholesale, Manufacturers & Suppliers
- Builders & Contractors, Dubois
- Builders & Contractors - More, Dubois
- Building Construction Consultants, Dubois - Construction Management & Consulting
- Building Design & Construction Consultants, Dubois
- Building Hardware & Materials, Dubois
- Building Materials, Dubois - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Dubois
- Building Site Preparation Contractors, Dubois - Land Preparation & Land Clearing
- Business & Professional Associations, Dubois
- Business Legal Services, Dubois
- Business Services, Dubois
- Business, Vocational & Technical, Dubois
- Butchers & Meat Markets - Manufacturers, Dubois
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