- Bakeries, Onalaska
- Banks, Onalaska
- Baptist Churches, Onalaska
- Barbecue Restaurants, Onalaska
- Barbers, Onalaska
- Beauty Salons, Onalaska
- Beer & Wine Stores, Onalaska
- Boat Services, Onalaska
- Boats & Yachts, Onalaska - Yachts, Sailboats & Boats for Sale
- Bookkeeping Services Licensed, Onalaska
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- Bookkeeping Systems & Services, Onalaska
- Bottled Gas, Lp Gas & Propane Dealers, Onalaska
- Brake Service & Repair, Onalaska - Brake Pads
- Builders & Contractors, Onalaska
- Builders & Contractors - More, Onalaska
- Building Materials, Onalaska - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Onalaska
- Burglar Alarm Systems, Onalaska
- Business Legal Services, Onalaska
- Business Services, Onalaska
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