- Bakeries, Philomath
- Banks, Philomath
- Banquet Halls, Philomath
- Baptist Churches, Philomath
- Barbers, Philomath
- Bars, Philomath
- Bars & Grills, Philomath
- Beauty Salons, Philomath
- Beer & Wine Stores, Philomath
- Beer Brewing Supplies & Equipment, Philomath
- Beverage Stores, Philomath
- Bicycle Shops, Philomath - Road, Hybrid, Folding, BMX, Electric & Mountain Bikes Stores & Dealers
- Bird Farms, Philomath
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- Bonds, Philomath
- Brewers Home, Philomath
- Brick Masonry & Bricklayer Contractors, Philomath - Brick Mason - Install & Repair
- Brush Cutting, Philomath
- Builders & Contractors, Philomath
- Builders & Contractors - More, Philomath
- Building Construction Consultants, Philomath - Construction Management & Consulting
- Building Materials, Philomath - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Philomath
- Building Site Preparation Contractors, Philomath - Land Preparation & Land Clearing
- Business & Professional Associations, Philomath
- Business Management Consultants, Philomath
- Business Services, Philomath
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