- Bail Bonds, Donaldsonville
- Bakeries, Donaldsonville
- Banks, Donaldsonville
- Banquet Halls, Reception Halls & Party Facilities, Donaldsonville
- Baptist Churches, Donaldsonville
- Barbers, Donaldsonville
- Bars, Donaldsonville
- Bars & Grills, Donaldsonville
- Beauty Salons, Donaldsonville
- Bed & Breakfast, Donaldsonville
- Bedroom Furniture Stores, Donaldsonville - Master & Kids Bedroom Furniture Sets & Beds
- Beer Taverns, Donaldsonville
- Bereavement Services, Donaldsonville
- Boat & Yacht Brokers, Donaldsonville
- Bonds, Donaldsonville
- Books, Magazines & Newspapers Stores, Donaldsonville - Bookstores
- Bottled Gas, Lp Gas & Propane Dealers, Donaldsonville
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- Boutiques & Boutique Items, Donaldsonville
- Builders & Contractors, Donaldsonville
- Builders & Contractors - More, Donaldsonville
- Builders Hardware Stores, Donaldsonville
- Building Construction Consultants, Donaldsonville - Construction Management & Consulting
- Building Materials, Donaldsonville - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Donaldsonville
- Burglar Alarm Systems, Donaldsonville
- Burial Vaults, Donaldsonville
- Bus Dealers, Donaldsonville
- Business & Professional Associations, Donaldsonville
- Business & Trade Organizations, Donaldsonville
- Business Brokers, Donaldsonville
- Business Legal Services, Donaldsonville
- Business Management Consultants, Donaldsonville
- Business Services, Donaldsonville
- Business, Vocational & Technical, Donaldsonville
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