- Cabinets & Cabinet Hardware, Berkley
- Cable TV Companies & Services, Berkley
- Cafe Restaurants, Berkley
- Candy, Nut & Confectionery Wholesale & Retail, Berkley - Candy Stores
- Car Detailing & Wash Service, Berkley - Auto Detailing
- Car Rental, Berkley - Rental Cars & Lease Service
- Car Wash, Cleaning, Wax & Polish Service, Berkley
- Cardiologists, Berkley - Heart Doctors, Physicians & Surgeons (Cardiology)
- Carnivals, Fairs & Exhibitions, Berkley
- Carpet & Rug Cleaners Equipment & Supplies, Berkley
- Carpet & Rug Cleaners Water Extraction & Restoration, Berkley
- Carpet & Rug Cleaning Equipment & Supplies Rental, Berkley
- Carpet Rug & Upholstery Cleaners, Berkley
- Casual Dining Restaurants, Berkley
- Caterers Food Services, Berkley
- Catholic Churches, Berkley
- Caulking Contractors, Berkley
- Cell & Mobile Installation Repairs, Berkley
- Cellular & Mobile Phone Equipment & Systems Installation, Repair & Service, Berkley
- Cellular & Mobile Phone Service, Berkley
- Cement Retail, Berkley
- Cemeteries Lot Brokers, Berkley
- Central American Restaurants, Berkley
- Chambers Of Commerce, Berkley
- Chemicals & Related Products, Berkley
- Chiropractor, Berkley
- Christian Churches, Berkley
- Churches 1 Of 3, Berkley
- Cigar, Cigarette & Tobacco Store & Supplies, Berkley
- City & County Government, Berkley
- Cleaning & Maintenance Services, Berkley
- Cleaning & Restoration Contractors, Including Sandblasting, Berkley
- Cleaning Equipment Rental, Berkley
- Clinics, Berkley
- Clothing Stores, Berkley - Clothes & Accessories
- CNC Machine Shop, Berkley
- Coaching Business & Personal, Berkley
- Coffee, Espresso & Tea House Restaurants, Berkley
- Coin Dealers & Supplies , Berkley
- Collectibles, Berkley
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- Collection Agency Services, Berkley
- Comic Book Stores, Berkley
- Commercial & Industrial Laundry, Berkley
- Commercial & Industrial Photographers, Berkley
- Commercial Building Remodeling & Repair Contractors, Berkley
- Commercial Equipment, Berkley
- Commercial Printing Manufacturers, Berkley
- Communications Consultants, Berkley
- Communications Services, Berkley
- Community & Recreational Facilities, Berkley
- Community Services, Berkley
- Computer & Audio Visual Services, Berkley
- Computer & Laptop Repair, Berkley - PC Repair Services
- Computer & Software Stores, Berkley
- Computer Repair, Berkley
- Computer Software & Services, Berkley
- Computer Software Service, Berkley
- Computer System Consultants, Berkley - IT Consulting Services
- Computer System Designers & Consultants, Berkley
- Construction, Berkley
- Construction Equipment & Supplies, Berkley
- Construction Services, Berkley
- Consultants & Services, Berkley
- Convenience Stores, Berkley
- Convention & Meeting Facilities, Berkley - Meeting Rooms
- Cooling System & Parts, Berkley - Antifreeze, Radiator, Water Pump, Fan, Hoses, Belts, etc
- Corporate Attorneys & Lawyers, Berkley
- Corporate Business Attorneys & Lawyers, Berkley
- Corporate Lawyers & Attorneys, Berkley
- Counseling Services, Berkley
- Country Cooking Restaurants, Berkley
- Craft Supplies, Berkley - Hobby & Craft Stores
- Credit Card Merchant Services, Berkley
- Credit Card Plan Services, Berkley
- Credit Unions, Berkley
- Cremation Services, Supplies & Equipment, Berkley
- Curtains, Drapes & Window Treatments and Coverings, Berkley - Drapery & Upholstery Fabric Stores
- Custom Made Boots & Shoes, Berkley
- Custom Sewing & Alterations, Berkley
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