- Bail Bonds, Steelville
- Banks, Steelville
- Baptist Churches, Steelville
- Barbecue Restaurants, Steelville
- Barbers, Steelville
- Bars & Grills, Steelville
- Beach & Water Related Services, Steelville
- Beauty Salons, Steelville
- Bed & Breakfast, Steelville
- Bereavement Services, Steelville
- Beverage Stores, Steelville
- Bibles Retail, Steelville
- Boats & Yachts, Steelville - Yachts, Sailboats & Boats for Sale
- Book Manufacturers, Steelville
- Bookkeeping Services Licensed, Steelville
- Bookkeeping Systems & Services, Steelville
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- Books, Magazines & Newspapers Stores, Steelville - Bookstores
- Brake Service & Repair, Steelville - Brake Pads
- Builders & Contractors, Steelville
- Builders & Contractors - More, Steelville
- Building Construction Consultants, Steelville - Construction Management & Consulting
- Building Hardware & Materials, Steelville
- Building Materials, Steelville - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Steelville
- Building Site Preparation Contractors, Steelville - Land Preparation & Land Clearing
- Burial Advisory Service, Steelville
- Business & Professional Associations, Steelville
- Business Legal Services, Steelville
- Business Management Consultants, Steelville
- Business Services, Steelville
- Butcher Shops, Steelville
- Butchers & Meat Markets - Manufacturers, Steelville
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