- Safety & Security Systems & Consultants, Halifax
- Sand Gravel & Aggregate, Halifax
- Sandwich Shop Restaurants, Halifax
- Scientific Equipment & Services, Halifax
- Scientific Services, Halifax
- Security & Surveillance System & Equipment, Halifax
- Security Management Consultants, Halifax
- Sewer & Drain Cleaning & Repair, Halifax - Drain Cleaner & Installation Services
- Sheet Metal, Halifax
- Shopping & Shopping Services, Halifax
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