- Cabinets & Cabinet Hardware, Edwardsville
- Cafe Restaurants, Edwardsville
- Cameras & Photographic Supplies, Edwardsville
- Car Detailing & Wash Service, Edwardsville - Auto Detailing
- Car Rental, Edwardsville - Rental Cars & Lease Service
- Car Tune Up Service, Edwardsville - Auto Tune Up
- Car Wash, Cleaning, Wax & Polish Service, Edwardsville
- Carpenters, Edwardsville - Carpentry Contractors
- Carpet Rug & Upholstery Cleaners, Edwardsville
- Carpet, Rug & Linoleum Flooring Dealers, Edwardsville
- Cars, Truck, Van & SUV Car Dealerships, Edwardsville - Auto Dealers
- Casual Dining Restaurants, Edwardsville
- Caterers Food Services, Edwardsville
- Catholic Churches, Edwardsville
- Cell & Mobile Installation Repairs, Edwardsville
- Cellular & Mobile Phone Equipment & Systems Installation, Repair & Service, Edwardsville
- Cellular & Mobile Phone Service, Edwardsville
- Central American Restaurants, Edwardsville
- Chambers Of Commerce, Edwardsville
- Chemicals & Related Products, Edwardsville
- Chicken Restaurants, Edwardsville
- Child Care & Day Care Services, Edwardsville
- Child Care - Day Care - Private, Edwardsville
- Child Related Social Services, Edwardsville
- Children's Clothing Stores, Edwardsville - Infant, Babies & Kids Clothing
- Childrens After School Programs, Edwardsville
- Chimney Cleaning & Repair, Edwardsville - Fireplace - Chimney Sweep Services
- Chinese Restaurants, Edwardsville
- Chiropractic Clinics, Edwardsville
- Chiropractor, Edwardsville
- Chocolate & Cocoa, Edwardsville
- Christian Churches, Edwardsville
- Church Of Christ, Edwardsville
- Church Of God, Edwardsville
- Churches 1 Of 3, Edwardsville
- Churches 2 Of 3, Edwardsville
- Churches Christian Science, Edwardsville
- Cigar, Cigarette & Tobacco Store & Supplies, Edwardsville
- City & County Administrative Agencies, Edwardsville
- City & County Government, Edwardsville
- City & County Law Enforcement, Edwardsville
- Cleaning & Maintenance Services, Edwardsville
- Cleaning & Restoration Contractors, Including Sandblasting, Edwardsville
- Cleaning Chemical Compounds, Edwardsville
- Cleaning Supplies, Systems & Equipment, Edwardsville - Janitorial Supplies
- Clinics, Edwardsville
- Clock & Watch Stores, Edwardsville
- Clothing & Accessories Resale & Consignment Shops, Edwardsville
- Clothing Stores, Edwardsville - Clothes & Accessories
- CNC Machine Shop, Edwardsville
- Cocktail Lounges, Edwardsville
- Coffee & Tea Stores, Edwardsville
- Coffee, Espresso & Tea House Restaurants, Edwardsville
- Collectibles, Edwardsville
- Colleges & Universities, Edwardsville
- Collision Repair & Services, Edwardsville
- Comic Book Stores, Edwardsville
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- Commercial Equipment, Edwardsville
- Commercial Printing Manufacturers, Edwardsville
- Commodity & Merchandise Storage & Warehouse, Edwardsville - Warehousing
- Communications & Utilities Regulation, Edwardsville
- Communications Contractors, Edwardsville
- Communications Services, Edwardsville
- Community & Recreational Facilities, Edwardsville
- Community Church, Edwardsville
- Community Churches, Edwardsville
- Community Services, Edwardsville
- Computer & Audio Visual Services, Edwardsville
- Computer & Laptop Repair, Edwardsville - PC Repair Services
- Computer & Software Stores, Edwardsville
- Computer Networks, Edwardsville - Design & Systems
- Computer Programming & Software Development Services, Edwardsville
- Computer Repair, Edwardsville
- Computer Software & Services, Edwardsville
- Computer Software Service, Edwardsville
- Computer Stores, Edwardsville
- Computer System Consultants, Edwardsville - IT Consulting Services
- Computer System Designers & Consultants, Edwardsville
- Computer Systems & Equipment Custom Designed, Edwardsville
- Concrete, Edwardsville - Cement & Concrete Products, Suppliers, Companies
- Concrete & Cement, Edwardsville
- Concrete Contractors, Edwardsville - Concrete Construction & Concrete Companies
- Concrete Product Manufacturers, Edwardsville
- Congregational Church, Edwardsville
- Construction, Edwardsville
- Construction Companies, Edwardsville
- Construction Services, Edwardsville
- Consultants & Services, Edwardsville
- Convenience Stores, Edwardsville
- Convention & Meeting Facilities, Edwardsville - Meeting Rooms
- Cooking Oils & Shortenings, Edwardsville
- Cooking, Food & Beverage Equipment, Edwardsville
- Cooling System & Parts, Edwardsville - Antifreeze, Radiator, Water Pump, Fan, Hoses, Belts, etc
- Copying & Duplicating Services, Edwardsville
- Coroners, Edwardsville
- Corporate Attorneys & Lawyers, Edwardsville
- Corporate Business Attorneys & Lawyers, Edwardsville
- Corporate Lawyers & Attorneys, Edwardsville
- Cosmetics, Toiletries, Perfumes & Beauty Supply Stores, Edwardsville
- Cosmetology School, Edwardsville
- Country Clubs, Edwardsville
- Courier Service, Edwardsville
- Court Reporter , Edwardsville - Stenographer & Convention Reporters
- Craft Supplies, Edwardsville - Hobby & Craft Stores
- Credit Unions, Edwardsville
- Cremation Services, Supplies & Equipment, Edwardsville
- Criminal Attorneys & Lawyers, Edwardsville
- Criminal Defense Attorneys & Lawyers, Edwardsville
- Criminal Defense Lawyers & Attorneys, Edwardsville
- Crude Petroleum & Natural Gas, Edwardsville
- Culverts & Other Drainage Pipes, Edwardsville
- Curtains, Drapes & Window Treatments and Coverings, Edwardsville - Drapery & Upholstery Fabric Stores
- Custom Sewing & Alterations, Edwardsville
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