- Baby Items & Supplies, Portland
- Baby Stores, Portland - Baby Accessories & Clothes
- Backflow Prevention Devices & Services, Portland
- Badges & Buttons, Portland
- Bagel Restaurants, Portland
- Bagels, Portland
- Bags, Portland - Paper, Plastic, Sand, Burlap, Canvas, Transparent, etc
- Bags Burlap, Cotton, Canvas & Polypropylene, Portland
- Bags Industrial & Commercial, Portland
- Baked Goods, Snacks & Sweets, Portland
- Baker Equipment & Supplies, Portland - Donut Maker, etc
- Bakeries, Portland
- Baking Supplies & Needs, Portland - Flavoring Extracts, Flour & More
- Baling Equipment & Supplies, Portland
- Balloons, Portland
- Balloons - Advertising & Signage, Portland
- Balloons - Novelty, Toy & Decorative, Portland
- Balloons Hot & Cold Air, Portland
- Ballroom Dance Hall, Portland
- Bank Supplies & Equipment, Portland
- Bankruptcy Attorneys & Lawyers, Portland
- Bankruptcy Attorneys & Lawyers, Portland
- Bankruptcy Lawyers & Attorneys, Portland
- Bankruptcy Services, Portland
- Banks, Portland
- Banners, Flags, Pennants, Decals, Posters & Signs, Portland
- Banquet Halls, Portland
- Banquet Halls, Reception Halls & Party Facilities, Portland
- Baptist Churches, Portland
- Bar Coding Services, Portland
- Bar Supplies, Equipment & Fixtures, Portland
- Barbecue Grills & Supplies, Portland
- Barbecue Restaurants, Portland
- Barber Schools, Portland
- Barber Shop & Beauty Salon Supplies & Equipment, Portland - Beauty & Barber Supplies
- Barber Shops, Portland
- Barbers, Portland
- Barges, Portland
- Bariatricians, Portland - Weight Loss Doctors, Physicians & Surgeons (Eating Disorders & Bariatric Medicine)
- Bark & Bark Products, Portland
- Barrels & Drums, Portland
- Barricades, Portland
- Bars, Portland
- Bars & Grills, Portland
- Barter & Trade Exchanges, Portland
- Baseball & Softball Batting Ranges, Portland
- Baseball & Softball Clubs, Portland
- Baseball Cards & Sports Memorabilia, Portland
- Basement Contractors, Portland - Basement Waterproofing & Remodeling
- Basement Waterproofing, Portland
- Basement Waterproofing - Waterproofing Contractors, Portland - Foundation & Concrete Waterproofing
- Baskets, Portland
- Bath & Body Products, Portland
- Bath Equipment & Supplies, Portland
- Bathroom Accessories, Portland
- Bathroom Accessories & Fixtures, Portland - Bath Accessories, Vanity & Mirrors
- Bathroom Fixtures, Portland - Bathroom Faucets, Bathtubs, Sinks, Shower Heads & Fixtures, etc
- Bathroom Fixtures & Accessories Manufacturers, Portland
- Bathroom Remodeling, Portland - Bathroom Remodel & Planning Services
- Bathtubs & Sinks - Repair & Refinishing, Portland - Bathtub Refinishing, Repair & Resurfacing
- Batteries Dry Cell Manufacturers, Portland
- Batteries Dry Cell Wholesale, Portland
- Batteries Storage Manufacturers, Portland
- Battery, Portland - Retail Batteries Stores
- Battery Charging & Monitoring Equipment, Portland
- Battery Charging Equipment Repair, Portland
- Battery Manufacturers, Portland
- Battery Storage, Portland
- Battery Stores, Portland
- Battery Supplies, Portland
- Beach & Water Related Services, Portland
- Beads Decor, Portland
- Bearings, Portland
- Beauty Salons, Portland
- Bed & Breakfast, Portland
- Bedding & Linens Stores, Portland - Bed Sheets, Quilts and Coverlets, Cushions, Pillows, Slipcovers & Bed & Table Linens
- Bedding Manufacturers Supplies, Portland
- Bedroom Furniture Stores, Portland - Master & Kids Bedroom Furniture Sets & Beds
- Bee Control & Removal Services, Portland - Bee Removal Companies
- Bee Keepers Supplies, Portland
- Beef Restaurants, Portland
- Beer & Ale - Wholesale, Portland
- Beer & Wine Stores, Portland
- Beer Brewing Supplies & Equipment, Portland
- Beer Dispensing & Cooling Equipment, Portland
- Beer Gardens, Portland
- Beer Taverns, Portland
- Behavioral Health Doctors, Physicians & Surgeons, Portland - Behavioral Medicine
- Belting & Belting Supplies Wholesale, Portland
- Belting Supplies & Equipment, Portland
- Benefit Administration, Portland
- Beverage & Juice Bottlers Manufacturers, Portland
- Beverage Dispenser Supplies & Equipment , Portland - Beverage Dispensing
- Beverage Machinery, Portland
- Beverage Manufacturers, Portland
- Beverage Non-Alcoholic Manufacturers, Portland
- Beverage Stores, Portland
- Beverages, Portland
- Bible Church, Portland
- Bibles Retail, Portland
- Bicycle & Motorcycle Services, Portland
- Bicycle Equipment & Clothing, Portland
- Bicycle Parts & Accessories, Portland
- Bicycle Racks & Security Systems, Portland
- Bicycle Rentals, Portland - Bike Rental
- Bicycle Repair & Service, Portland - Bike Repair Shops
- Bicycle Shops, Portland - Road, Hybrid, Folding, BMX, Electric & Mountain Bikes Stores & Dealers
- Bicycle Tours, Portland
- Bid Information Service, Portland
- Big & Tall Men's Clothing, Portland
- Bill Payment Service, Portland
- Billiard & Pool Parlors, Portland
- Billiard Supplies & Equipment, Portland - Pool Table
- Billing Services, Portland
- Bindings Packing, Portland
- Binoculars & Telescopes, Portland
- Bio Hazardous Material - Handling & Disposal, Portland
- Biofeedback Therapy & Training, Portland
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- Biological Research, Portland - Biological Labs
- Biotechnology Products & Services, Portland
- Bird Cages & Accessories, Portland
- Bird Feeders & Supplies, Portland
- Bird Repellent, Barrier & Control, Portland
- Birds, Portland
- Birds & Bird Supplies , Portland
- Birth Control & Family Planning Clinics, Portland
- Bistros, Portland
- Blankbooks & Looseleaf Binders Manufacturers, Portland
- Blasting Contractors Supplies & Equipment, Portland
- Blood Bank & Center, Portland
- Blowers & Blower Systems & Parts, Portland
- Blueprint Service, Portland - Blueprinting Services
- Board Games Equipment & Supplies, Portland
- Boat & Sailboat Equipment & Supplies Repair & Service, Portland
- Boat & Yacht Charter, Portland
- Boat & Yacht Charters, Portland
- Boat & Yacht Cleaning & Detailing, Portland
- Boat Covers, Tops & Upholstery, Portland
- Boat House & Lifts, Portland
- Boat Services, Portland
- Boats & Yachts, Portland - Yachts, Sailboats & Boats for Sale
- Boiler & Furnace Contractors, Portland - Installation, Cleaning & Repair Services
- Boiler - New & Used, Portland - Radiant Heating
- Boiler Rental, Portland
- Boiler Repair & Cleaning, Portland
- Bonds, Portland
- Bonds Surety & Fidelity, Portland
- Book Binders & Folders, Portland - Office Supplies
- Book Publishers, Portland - Book Printing & Publishing
- Book Stores, Portland
- Bookkeeping Services Licensed, Portland
- Bookkeeping Systems & Services, Portland
- Books, Magazines & Newspapers Stores, Portland - Bookstores
- Boot Manufacturers, Portland
- Boots Retail, Portland
- Botanical & Zoological Gardens, Portland
- Botanical Gardens, Portland
- Bottle Manufacturers, Portland
- Bottled & Canned Soft Drinks Manufacturers, Portland
- Bottled Gas, Lp Gas & Propane Dealers, Portland
- Bottlers Equipment & Supplies, Portland
- Bottling Manufacturing, Portland
- Boutiques & Boutique Items, Portland
- Bowling Centers, Portland
- Bowling Equipment, Portland
- Box Lunches, Portland
- Box Manufacturers Equipment & Supplies, Portland
- Boxes Specialty & Fancy, Portland
- Braille Services & Supplies, Portland
- Brake Lining Manufacturers, Portland
- Brake Service & Repair, Portland - Brake Pads
- Brakes Manufacturers, Portland
- Brass & Brass Products, Portland
- Brazilian Restaurants, Portland
- Breakfast Restaurants, Portland
- Breast Feeding Information & Supplies, Portland
- Breast Pumps Sales & Rentals, Portland
- Brethren Church, Portland
- Brew Pubs, Portland
- Brick & Structural Product Manufacturers, Portland
- Brick Masonry & Bricklayer Contractors, Portland - Brick Mason - Install & Repair
- Bricks, Blocks & Stone Products, Portland - Companies, Wholesale, Manufacturers & Suppliers
- Broadwoven Fabric Mills Wool, Portland
- Broker Consultants, Portland - Business Coaches & Consultants
- Bronze & Bronze Products, Portland
- Brooms & Brushes, Portland
- Brooms & Brushes Manufacturers, Portland
- Buddhist Churches, Portland
- Buffet Restaurants, Portland
- Builders & Contractors, Portland
- Builders & Contractors - More, Portland
- Builders Hardware Stores, Portland
- Building & Construction Equipment & Machinery Manufacturers, Portland
- Building & Home Inspection, Portland - Real Estate, Building, Land & House Inspection Service
- Building & Land Inspection Service, Portland
- Building & Property Maintenance & Services, Portland
- Building Cleaning - Exterior, Portland - Cleaning Service
- Building Construction Consultants, Portland - Construction Management & Consulting
- Building Design & Construction Consultants, Portland
- Building Hardware & Materials, Portland
- Building Materials, Portland - Wholesale, Manufacturers, Dealers & Suppliers
- Building Materials & Supplies, Portland
- Building Materials Used, Portland
- Building Materials, Glass, Portland
- Building Restoration & Preservation, Portland
- Building Site Preparation Contractors, Portland - Land Preparation & Land Clearing
- Building Specialists, Portland
- Buildings, Portland
- Burglar & Alarm Service, Portland - Monitoring Service
- Burglar Alarm Systems, Portland
- Bus & Other Large Specialty Vehicle Manufacturers, Portland
- Bus Dealers, Portland
- Bus Lines, Portland - Bus Transportation
- Bus Lines Ticket Agencies, Portland
- Bus Rental & Charter Bus Service, Portland
- Business & Professional Associations, Portland
- Business & Trade Organizations, Portland
- Business Brokers, Portland
- Business Colleges, Portland
- Business Communication Consultants, Portland
- Business Development, Portland
- Business Forms, Systems & Supplies, Portland
- Business Insurance, Portland
- Business Legal Services, Portland
- Business Machines Repair, Portland
- Business Management Consultants, Portland
- Business Planning & Consulting, Portland
- Business Planning & Organizing, Portland
- Business Services, Portland
- Business Studio Rental, Portland
- Business Wholesale, Portland
- Business, Vocational & Technical, Portland
- Butchers & Meat Markets - Manufacturers, Portland
- Butchers Equipment & Supplies, Portland
- Buttons Advertising, Portland
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