- Safe & Vault, Addison
- Safety Equipment & Supplies, Addison
- Sales & Marketing Consultant, Addison
- Sand Gravel & Aggregate, Addison
- Sandwich Shop Restaurants, Addison
- Savings Banks, Addison
- Sawmill, Paper & Woodworking Supplies, Machinery & Equipment, Addison
- Scales Retail, Addison
- School - Catholic, Addison
- School - Christian, Addison
- Science & Research, Addison
- Scrap & Waste Materials, Addison
- Screen Houses, Addison
- Screen Printing, Addison
- Seals, Addison - Hermetic, Hydraulic, Mechanical, Metal, Oil, Grease, etc
- Seals O Ring, Addison
- Secondary Schools, Addison
- Secretarial & Court Reporting Services, Addison
- Security Alarm Systems - Home & Business, Addison
- Security Brokers & Dealers, Addison
- Security Control Systems & Monitoring, Addison - Polygraph, Lie Detector, CCTV, Fire Sensor Equipment, Etc
- Security Investigative Services, Addison
- Security Services, Addison
- Semi Precious Metals, Addison
- Senior Citizens Service & Health Organizations, Addison
- Service & Gas Station Equipment & Services, Addison
- Service Establishment Supplies & Equipment, Addison
- Sewer & Drain Cleaning & Repair, Addison - Drain Cleaner & Installation Services
- Sewing & Yarn Stores & Supplies, Addison
- Sharpening Service, Addison
- Sheet Metal, Addison
- Sheet Metal Contractors, Addison - Sheet Metal Fabrication
- Sheet Metal Fabricators & Ductwork Contractors, Addison
- Sheet Metal Work - Aluminum, Tin, Stainless Steel, etc, Addison - Sheet Metal Products
- Shirts & T-Shirts, Addison
- Shoe Dyers, Addison
- Shoe Repair Shops, Addison
- Shopping & Shopping Services, Addison
- Shot Peening, Addison
- Shutters - Interior & Exterior, Addison - Wood, Vinyl, Window, Plantation Shutters, etc
- Siding Contractors, Addison - Vinyl Siding, Wood, Metal & Aluminum Siding Contractors - Installation & Repair
- Siding Materials, Addison
- Sign Equipment & Supplies, Addison
- Signs, Addison
- Skating Rink & Hockey Operation Services, Addison
- Ski, Snowboard & Snowmobile Shop - Equipment Rental & Services, Addison
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- Skylights, Addison - Skylight Shades, Blinds, Covers & More
- Smoking Cessation Treatment Centers & Information Services, Addison
- Snacks & Desserts, Addison
- Snow Removal Equipment Repair & Service, Addison
- Snow Removal Services, Addison - Snow Plow Service
- Snowboard Equipment Rentals, Addison
- Soaps & Detergents Manufacturers, Addison
- Soccer Clubs, Addison
- Social Services & Welfare, Addison
- Social Workers & Services, Addison
- Societies & Foundation Associations, Addison
- Solariums & Garden Rooms, Addison
- Special Coatings, Addison - Protective Coatings
- Special Dies Tools Jigs & Fixtures Manufacturers, Addison
- Special Events & Party Supply Rental, Addison
- Special Interest Schools Or Instruction, Addison
- Special Needs Transportation, Addison
- Specialty Animal Services, Addison
- Specialty Goods Storage, Addison
- Specialty Stores, Addison
- Sporting Goods Stores, Addison
- Sportswear Clothing Stores, Addison - Sports Clothes
- Sprinkler Alarm Systems, Addison - Fire Sprinkler Systems
- Staffing & Support Services, Addison
- Stationery & Office Supplies, Addison
- Steak House Restaurants, Addison
- Steel & Metal Goods, Addison - Steel Distributors
- Steel Manufacturers, Addison
- Steel Mills & Blast Furnaces, Addison
- Stock & Bond Brokers & Dealers, Addison
- Stocks & Bond Brokers, Addison
- Storage & Closet Equipment Supplies & Materials, Addison
- Store Fixtures, Addison
- Store Fixtures & Display Equipment, Addison
- Stoves & Furnace Equipment, Addison - Fittings & Repair Parts
- Stucco Stone, Addison
- Substance Abuse Clinics, Addison - Alcoholism, Addiction & Drug Abuse Treatment Centers
- Substance Abuse Outpatient Clinics, Addison
- Sunrooms & Solarium Construction Contractors, Addison - Build & Repair
- Sunrooms, Greenhouses, Solariums & Atrium Builders, Addison - Build & Repair
- Support Services, Addison
- Surgical Hospitals, Addison - Surgical Centers
- Surveyor Services, Addison - Surveying Service
- Surveyors, Addison
- Sweepers & Scrubbers Industrial, Addison - Sweeping Service
- Swimming Pools Supplies, Equipment & Accessories, Addison
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