- Warehousing & Storage, Greenport - Warehouse Services
- Water Transportation, Except Passenger, Greenport
- Water Treatment & Conditioning Systems, Equipment & Supplies, Greenport - Water Softener Companies
- Wedding & Bridal Services, Greenport
- Wedding Equipment Rental, Greenport
- Welding & Welder, Greenport - Welding Supplies, Machines, Equipment, Services & Contractors
- Wicker & Rattan Products, Greenport
- Wildlife Rescue & Rehabilitation, Greenport
- Wildlife Services, Greenport
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- Window Blinds, Shades & Window Treatments and Coverings, Greenport - Roller & Roman Shades - Wood, Metal & Vertical Blinds
- Windows, Greenport - Single & Double Hung, Casement, Sliding, Glass Block, Basement Windows & More
- Wine Bars, Greenport
- Wine Manufacturers, Greenport
- Women s Clothing Stores, Greenport - Clothes & Accessories
- Women's Accessories, Greenport - Purses, Handbags, Scarves & More
- Women's Fashion Accessories, Greenport - Handbags, Wallets, Scarves, Belts, Necklace, Bracelets, Earrings and more
- Wood Products, Greenport
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