- Banks, Mayville
- Banquet Halls, Mayville
- Banquet Halls, Reception Halls & Party Facilities, Mayville
- Baptist Churches, Mayville
- Barbers, Mayville
- Bars, Mayville
- Bars & Grills, Mayville
- Beauty Salons, Mayville
- Beer & Wine Stores, Mayville
- Beer Taverns, Mayville
- Bonds, Mayville
- Bowling Centers, Mayville
- Brick Masonry & Bricklayer Contractors, Mayville - Brick Mason - Install & Repair
- Builders & Contractors, Mayville
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- Builders & Contractors - More, Mayville
- Builders Hardware Stores, Mayville
- Building & Property Maintenance & Services, Mayville
- Building Hardware & Materials, Mayville
- Building Materials & Supplies, Mayville
- Bus Lines, Mayville - Bus Transportation
- Bus Lines Ticket Agencies, Mayville
- Bus Rental & Charter Bus Service, Mayville
- Business & Professional Associations, Mayville
- Business Development, Mayville
- Business Legal Services, Mayville
- Business Planning & Organizing, Mayville
- Business Services, Mayville
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