- Bakeries, Northwood
- Bankruptcy Attorneys & Lawyers, Northwood
- Bankruptcy Attorneys & Lawyers, Northwood
- Bankruptcy Lawyers & Attorneys, Northwood
- Banks, Northwood
- Baptist Churches, Northwood
- Barbers, Northwood
- Bars, Northwood
- Bars & Grills, Northwood
- Battery, Northwood - Retail Batteries Stores
- Battery Repair & Rebuilding, Northwood
- Battery Storage, Northwood
- Beauty Salons, Northwood
- Bee Control & Removal Services, Northwood - Bee Removal Companies
- Beer & Ale - Wholesale, Northwood
- Beer & Wine Stores, Northwood
- Beer Taverns, Northwood
- Beverages, Northwood
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- Billiard & Pool Table Sales, Service & Repair, Northwood
- Billiard Supplies & Equipment, Northwood - Pool Table
- Blueprint Service, Northwood - Blueprinting Services
- Bookkeeping Services Commercial, Northwood
- Bookkeeping Systems & Services, Northwood
- Bowling Centers, Northwood
- Brake Service & Repair, Northwood - Brake Pads
- Breakfast Restaurants, Northwood
- Builders & Contractors, Northwood
- Builders & Contractors - More, Northwood
- Building Construction Consultants, Northwood - Construction Management & Consulting
- Building Materials & Supplies, Northwood
- Business & Professional Associations, Northwood
- Business Insurance, Northwood
- Business Legal Services, Northwood
- Business Services, Northwood
- Business, Vocational & Technical, Northwood
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