- Wallpaper Installation Contractors, Ottawa - Wallcovering Installation
- Warehousing & Storage, Ottawa - Warehouse Services
- Waste & Refuse Services & Sites, Ottawa
- Water Companies, Ottawa
- Water Consultants, Ottawa
- Water Service, Ottawa
- Wedding & Bridal Services, Ottawa
- Wedding Ceremony Locations & Wedding Venues, Ottawa
- Wedding Supplies & Bridal Shops, Ottawa
- Welding & Welder, Ottawa - Welding Supplies, Machines, Equipment, Services & Contractors
- Welding Equipment & Supplies, Ottawa
- Welding Gases, Ottawa
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- Welding Supplies & Equipment, Ottawa
- Wesleyan Church, Ottawa
- Window & Door - Installation & Repair, Ottawa - Install, Repair & Replace
- Windows, Ottawa - Single & Double Hung, Casement, Sliding, Glass Block, Basement Windows & More
- Windows and Doors, Ottawa - Wholesale, Manufacturers & Suppliers
- Windshield, Ottawa - Automobile
- Wireless & Cellular Communications Equipment & Supplies, Ottawa
- Women s Clothing Stores, Ottawa - Clothes & Accessories
- Women's Fashion Accessories, Ottawa - Handbags, Wallets, Scarves, Belts, Necklace, Bracelets, Earrings and more
- Wood Windows, Ottawa
- Work, Utility & Commercial Vehicle Dealers, Ottawa
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