- Bakeries, Castroville
- Banking Systems & Services Electronic, Castroville
- Banks, Castroville
- Bars, Castroville
- Battery, Castroville - Retail Batteries Stores
- Battery Storage, Castroville
- Bearings, Castroville
- Beauty Salons, Castroville
- Beer & Wine Stores, Castroville
- Beer Taverns, Castroville
- Beverage & Juice Bottlers Manufacturers, Castroville
- Beverage Non-Alcoholic Manufacturers, Castroville
- Beverage Stores, Castroville
- Beverages, Castroville
- Boat Services, Castroville
- Bottling Manufacturing, Castroville
|
- Brake Service & Repair, Castroville - Brake Pads
- Breakfast Restaurants, Castroville
- Builders & Contractors, Castroville
- Builders & Contractors - More, Castroville
- Builders Hardware Stores, Castroville
- Building Construction Consultants, Castroville - Construction Management & Consulting
- Building Materials, Castroville - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Castroville
- Building Materials Used, Castroville
- Bus Rental & Charter Bus Service, Castroville
- Bus Tour Agencies, Castroville
- Business & Professional Associations, Castroville
- Business Legal Services, Castroville
- Business Services, Castroville
- Business Wholesale, Castroville
- Business, Vocational & Technical, Castroville
|
