| company | role | hq | verified |
|---|
| United P & H Supply Company | DIST | Milwaukee, WI (US) | 1 mfrs |
| Universal Plumbing & Heating Supply Co. | DIST | Chicago, IL (US) | 1 mfrs |
| Van Marcke Plumbing Supply | DIST | Phoenix, AZ (US) | 1 mfrs |
| Verona Industrial | DIST | Newark, NJ (US) | 1 mfrs |
| Warren Pipe & Supply | DIST | Warren, MI (US) | 1 mfrs |
| Wells Plumbing and Heating Supplies | DIST | Houston, TX (US) | 1 mfrs |
| Wholesale Pipe & Supply | DIST | Memphis, TN (US) | 1 mfrs |
| Wieland Concast | DIST | Wakeman, OH (US) | 1 mfrs |
| Winston Water Cooler of San Antonio-North | DIST | San Antonio, TX (US) | 1 mfrs |
| Winsupply - Beltsville | DIST | Beltsville, MD (US) | 1 mfrs |
| Winsupply Cleveland | DIST | Cleveland, OH (US) | 1 mfrs |
| Winsupply - Everett | DIST | Everett, WA (US) | 1 mfrs |
| Winsupply of Alexandria | DIST | Alexandria, MN (US) | 1 mfrs |
| Winsupply of Los Angeles | DIST | Los Angeles, CA (US) | 1 mfrs |
| Winsupply of New Bedford | DIST | New Bedford, MA (US) | 1 mfrs |
| Winsupply of Northglenn | DIST | Denver, CO (US) | 1 mfrs |
| Winsupply of Oklahoma City | DIST | Moore, OK (US) | 1 mfrs |
| Winsupply of Rivercity | DIST | Jacksonville, FL (US) | 1 mfrs |
| Winsupply of Sandusky | DIST | Sandusky, OH (US) | 1 mfrs |
| Winsupply of Seymour | DIST | Seymour, IN (US) | 1 mfrs |