- Warehousing & Storage, Merrillville - Warehouse Services
- Waste Container Rental, Merrillville
- Waste Disposal, Garbage, Trash & Rubbish Removal Contractors Equipment, Merrillville
- Waste Management, Waste Sanitation & Safety Equipment, Merrillville
- Watch Repair, Merrillville
- Watch, Clock & Jewelry Repair, Merrillville
- Water Filters & Purification Systems, Equipment & Supplies, Merrillville - Water Filtration Systems Companies
- Water Service, Merrillville
- Water Sports Equipment Manufacturers, Merrillville
- Water Treatment, Merrillville - Supplies, Equipment, Chlorination, etc
- Water Treatment & Conditioning Systems, Equipment & Supplies, Merrillville - Water Softener Companies
- Water Treatment Service, Merrillville - Water Filtration & Purification
- Water, Sewer & Utility Line Contractors, Merrillville - Installation & Repair Services
- Weather & Road Conditions Information, Merrillville
- Website Design, Management & Maintenance Services, Merrillville
- Wedding & Bridal Services, Merrillville
- Wedding Ceremony Locations & Wedding Venues, Merrillville
- Wedding Dresses & Bridal Gowns, Merrillville
- Wedding Supplies & Bridal Shops, Merrillville
- Weight Loss & Control Programs, Merrillville
- Welcoming Services For Newcomers, Merrillville
- Welding & Welder, Merrillville - Welding Supplies, Machines, Equipment, Services & Contractors
- Welding Supplies & Equipment, Merrillville
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- Well Drilling Equipment & Supplies, Merrillville - Water Well & Other Wells
- Wesleyan Church, Merrillville
- Wheel & Rim Repairing, Merrillville
- Wheel Alignment, Frame & Axle Service & Repair, Merrillville
- Wholesale Distributors Franchises, Merrillville
- Wigs, Toupees & Hair Products Stores, Merrillville
- Will And Trust Attorneys & Lawyers, Merrillville
- Window & Blind Cleaning, Merrillville
- Window & Door Contractors, Merrillville - Installation & Repair Services
- Window Blinds - Venetian, Mini, Vertical, Roman, Merrillville - Fabric, Roller, Bamboo & Wood Blinds
- Window Blinds, Shades & Window Treatments and Coverings, Merrillville - Roller & Roman Shades - Wood, Metal & Vertical Blinds
- Windows, Merrillville - Single & Double Hung, Casement, Sliding, Glass Block, Basement Windows & More
- Windows and Doors, Merrillville - Wholesale, Manufacturers & Suppliers
- Wireless & Cellular Communications Equipment & Supplies, Merrillville
- Women s Clothing Stores, Merrillville - Clothes & Accessories
- Women's & Girls Clothing & Accessories Stores, Merrillville
- Women's Accessories, Merrillville - Purses, Handbags, Scarves & More
- Women's Fashion Accessories, Merrillville - Handbags, Wallets, Scarves, Belts, Necklace, Bracelets, Earrings and more
- Women's Shoe Stores, Merrillville
- Word Church, Merrillville
- Work, Utility & Commercial Vehicle Dealers, Merrillville
- Writing Services, Merrillville
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