- Banks, Ortonville
- Baptist Churches, Ortonville
- Bars & Grills, Ortonville
- Beach & Water Related Services, Ortonville
- Beauty Salons, Ortonville
- Beverage & Juice Bottlers Manufacturers, Ortonville
- Beverage Non-Alcoholic Manufacturers, Ortonville
- Birth Control & Family Planning Clinics, Ortonville
- Boats & Yachts, Ortonville - Yachts, Sailboats & Boats for Sale
- Bottling Manufacturing, Ortonville
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- Bowling Centers, Ortonville
- Bricks, Blocks & Stone Products, Ortonville - Companies, Wholesale, Manufacturers & Suppliers
- Builders & Contractors, Ortonville
- Builders & Contractors - More, Ortonville
- Building Construction Consultants, Ortonville - Construction Management & Consulting
- Building Materials & Supplies, Ortonville
- Business & Professional Associations, Ortonville
- Business Legal Services, Ortonville
- Business Services, Ortonville
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