- Satellite Descrambling & Programming Service, Preston
- Satellite Dish Antennas & Equipment Dealers, Preston
- Satellite TV Service, Preston
- Savings Banks, Preston
- Schools For The Physically Challenged, Preston
- Scrap & Waste Materials, Preston
- Secondary Schools, Preston
- Senior Citizens Service & Health Organizations, Preston
- Sewing & Yarn Stores & Supplies, Preston
- Shopping & Shopping Services, Preston
- Social Services & Welfare, Preston
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- Societies & Foundation Associations, Preston
- Sod & Sodding Service, Preston
- Sod Farms, Preston
- Special Education & Care, Preston
- Specialty Stores, Preston
- State Government, Preston
- Steel & Metal Goods, Preston - Steel Distributors
- Stoves & Furnace Equipment, Preston - Fittings & Repair Parts
- Surveyor Services, Preston - Surveying Service
- Swimming Pools, Preston
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