- Safety Equipment & Supplies, Alief
- Satellite & Cable TV Equipment & Systems Repair & Service, Alief
- Sawmill, Paper & Woodworking Supplies, Machinery & Equipment, Alief
- Secondary Schools, Alief
- Security & Surveillance System & Equipment, Alief
- Security Services, Alief
- Service Establishment Supplies & Equipment, Alief
- Sewing & Yarn Stores & Supplies, Alief
- Shopping & Shopping Services, Alief
- Small Appliances, Alief
- Social Clubs & Organizations, Alief
- Social Services & Welfare, Alief
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- Specialty Animal Services, Alief
- Specialty Communication Companies & Services, Alief
- Specialty Stores, Alief
- Sprinkler Alarm Systems, Alief - Fire Sprinkler Systems
- Sprinkler System Contractors, Alief - Garden & Lawn Sprinkler System Installation & Repair
- Staffing & Support Services, Alief
- State Government, Alief
- Store Fixtures & Display Equipment, Alief
- Substance Abuse Clinics, Alief - Alcoholism, Addiction & Drug Abuse Treatment Centers
- Swimming Pool, Sauna & Spa Contractors, Alief
- Swimming Pools Contractors, Alief - Install Inground - Above Ground Pools
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