- School Bus Transportation Service, Jessup
- Scrap & Waste Materials, Jessup
- Screen Printing, Jessup
- Security Alarm Systems - Home & Business, Jessup
- Security Control Systems & Monitoring, Jessup - Polygraph, Lie Detector, CCTV, Fire Sensor Equipment, Etc
- Security Investigative Services, Jessup
- Security Services, Jessup
- Senior Citizens Service & Health Organizations, Jessup
- Shopping & Shopping Services, Jessup
- Snacks & Desserts, Jessup
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- Social Services & Welfare, Jessup
- Special Interest Schools Or Instruction, Jessup
- Special Needs Transportation, Jessup
- Specialty Stores, Jessup
- Sporting Goods Stores, Jessup
- Sports Photographers, Jessup
- Stadiums, Arenas, Coliseums & Athletic Fields, Jessup
- Staffing & Support Services, Jessup
- Storm Doors & Windows, Jessup
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