- Warehousing & Storage, Amityville - Warehouse Services
- Washing Compounds, Amityville
- Washing Machine & Dryer Repair & Service, Amityville
- Waste & Refuse Services & Sites, Amityville
- Waste Disposal & Recycling Services, Amityville
- Waste Disposal, Garbage, Trash & Rubbish Removal Contractors Equipment, Amityville
- Waste Management, Waste Sanitation & Safety Equipment, Amityville
- Water Main & Works Contractors, Amityville - Installation & Repair Services
- Water Skiing & Sports Rentals, Amityville
- Water Transportation, Except Passenger, Amityville
- Water, Sewer & Utility Line Contractors, Amityville - Installation & Repair Services
- Weapons Guns & Knives, Amityville
- Weather Related Services, Amityville
- Website Design, Management & Maintenance Services, Amityville
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- Wedding & Bridal Services, Amityville
- Wedding Ceremony Locations & Wedding Venues, Amityville
- Wedding Gown Cleaning, Amityville
- Wedding Gown Preservation, Amityville
- Wedding Supplies & Bridal Shops, Amityville
- Will And Trust Attorneys & Lawyers, Amityville
- Window & Door Contractors, Amityville - Installation & Repair Services
- Window Blinds, Shades & Window Treatments and Coverings, Amityville - Roller & Roman Shades - Wood, Metal & Vertical Blinds
- Windows and Doors, Amityville - Wholesale, Manufacturers & Suppliers
- Wireless & Cellular Communications Equipment & Supplies, Amityville
- Wood Products Molded Manufacturers, Amityville
- Woodworking Contractors, Amityville - Carpentry Contractors
- Wrecking & Demolition Contractors, Amityville - House & Building Demolition Companies
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