| WPWestlake Plastics Co/mayfield | Mayfield | PA | — | ◇ UNVERIFIED |
| WRWestlake Royal Bldg Products Kutztown Fac | Kutztown | PA | — | ◇ UNVERIFIED |
| WRWestlake Royal Building Products Kleer | Westfield | MA | — | ◇ UNVERIFIED |
| WRWestlake Royal Windows - Baldwin Division Shipping Bld | Cornelia | GA | — | ◇ UNVERIFIED |
| WRWestlake Royal Windows (dba Krestmark Industries) | Dallas | TX | — | ◇ UNVERIFIED |
| WMWest Michigan Molding, INC. | Grand Haven | MI | — | ◇ UNVERIFIED |
| WTWest Tech. Structures LLC | West Valley City | UT | — | ◇ UNVERIFIED |
| WSWhale Scientific INC | Commerce City | CO | — | ◇ UNVERIFIED |
| WIWheeling Investments, Inc. | Payson | AZ | — | ◇ UNVERIFIED |
| WDWhirley Drink Works | Warren | PA | — | ◇ UNVERIFIED |
| WIWhirley Ind Inc/harmar St | Warren | PA | — | ◇ UNVERIFIED |
| WIWhitefield Industrial Coating | Green Bay | WI | — | ◇ UNVERIFIED |
| WGWhite Graphic Systems | Grand Prairie | TX | — | ◇ UNVERIFIED |
| WOWhite Oak Partners | Portland | ME | — | ◇ UNVERIFIED |
| WSWhite Sands Pool Plastering, INC | Altamonte Springs | FL | — | ◇ UNVERIFIED |
| WWWhitewater Whirlpool Baths & Systems- Cultured Marble & Fiberglass Casting | Lindon | UT | — | ◇ UNVERIFIED |
| WOWide Open Company | Grand Rapids | MN | — | ◇ UNVERIFIED |
 Wiggins Plastics INC. | Nutley | NJ | — | ◇ UNVERIFIED |
| WFWilbert Funeral Services - Astral Molding & Finishing | Portland | IN | — | ◇ UNVERIFIED |
| WIWilbert INC | Lebanon | KY | — | ◇ UNVERIFIED |
| WIWilbert, INC. | Bellevue | OH | — | ◇ UNVERIFIED |
| WIWilbert, INC. | Harrisburg | NC | — | ◇ UNVERIFIED |
| WIWilbert INC Dba Wilbert Plastic Services | Lebanon | KY | — | ◇ UNVERIFIED |
| WMWilco Molding | Maryland Heights | MO | — | ◇ UNVERIFIED |
| WPWilden Plastics | Peachtree City | GA | — | ◇ UNVERIFIED |
| WKWilliam Kreysler & Associates | Petaluma | CA | — | ◇ UNVERIFIED |
| WFWilmington Fibre Specialty Company, INC. | New Castle | DE | — | ◇ UNVERIFIED |
| WIWilsonart International | Temple | TX | — | ◇ UNVERIFIED |
| WCWilson Composites LLC Pendleton Plt | Pendleton | SC | — | ◇ UNVERIFIED |
| WIWincup INC | Jacksonville | FL | — | ◇ UNVERIFIED |
| WLWind-o-shield LLC | Naples | FL | — | ◇ UNVERIFIED |
| WSWine Saver LLC | Powell | OH | — | ◇ UNVERIFIED |
| WWWings West International, INC. | City of Industry | CA | — | ◇ UNVERIFIED |
| WIWinnebago Industries, INC - Hampton | Hampton | IA | — | ◇ UNVERIFIED |
| WPWinpak Portion Packaging INC | South Chicago Heights | IL | — | ◇ UNVERIFIED |
| WWintech | Cassville | MO | — | ◇ UNVERIFIED |
| WIWinzeler, INC. | Harwood Heights | IL | — | ◇ UNVERIFIED |
| WPWise Plastics Technologies, INC. | Saint Charles | IL | — | ◇ UNVERIFIED |
| WLWitt Liners LLC | Claremore | OK | — | ◇ UNVERIFIED |
| WWWj Whatley INC | Aurora | CO | — | ◇ UNVERIFIED |
| WKW. Kintz Plastics, INC. | Howes Cave | NY | — | ◇ UNVERIFIED |
| WHW.l. Hailey & Company, INC. | Bessemer | AL | — | ◇ UNVERIFIED |
| WGW.m. Gulliksen Manufacturing Company Incorporated | West Roxbury | MA | — | ◇ UNVERIFIED |
| WCWna Comet East, INC | Chelmsford | MA | — | ◇ UNVERIFIED |
| WCWna Comet West INC | City of Industry | CA | — | ◇ UNVERIFIED |
| WIWna INC. | City of Industry | CA | — | ◇ UNVERIFIED |
| WIWna, INC. Bremen Facility | Bremen | GA | — | ◇ UNVERIFIED |
| WTWomack Tank | San Angelo | TX | — | ◇ UNVERIFIED |
| WHWooded Hills Investments, LLC | Harrison | AR | — | ◇ UNVERIFIED |
| WMWoodford Mfg | Colorado Springs | CO | — | ◇ UNVERIFIED |
