| WIWeldway INC | Oakdale | CA | — | ◇ UNVERIFIED |
| WMWe-mac Manufacturing CO | Atchison | KS | — | ◇ UNVERIFIED |
| WPWepco Plastics INC | Middlefield | CT | — | ◇ UNVERIFIED |
| WIWesselhoeft, INC. | Moundville | AL | — | ◇ UNVERIFIED |
| WCWest Central Metal Fab INC | Alexandria | MN | — | ◇ UNVERIFIED |
| WCWest Coast Fab, INC | Richmond | CA | — | ◇ UNVERIFIED |
| WCWest Coast Fabrication INC | Central Point | OR | — | ◇ UNVERIFIED |
| WMWestcoast Metal Fab INC | Scio | OR | — | ◇ UNVERIFIED |
| WCWest Coast Metal Finishing | Los Angeles | CA | — | ◇ UNVERIFIED |
| WCWest Coast Sheds LLC | Monroe | WA | — | ◇ UNVERIFIED |
| WCWest Coast Steel & Processing Dba Great Pacific Elbow | Chino | CA | — | ◇ UNVERIFIED |
| WCWest Coast Steel & Processing, LLC | Chino | CA | — | ◇ UNVERIFIED |
| WIWestco Iron Works | Livermore | CA | — | ◇ UNVERIFIED |
| WBWestech Building Products | Mount Vernon | IN | — | ◇ UNVERIFIED |
| WAWestern Architectural Iron CO | Chicago | IL | — | ◇ UNVERIFIED |
| WAWestern Architectural Services LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| WFWestern Fabrication & Equipment | Bakersfield | CA | — | ◇ UNVERIFIED |
| WFWestern Fabrication, LLC | Las Cruces | NM | — | ◇ UNVERIFIED |
| WFWestern Fabricators | Hesperia | CA | — | ◇ UNVERIFIED |
| WGWestern Group | Portersville | PA | — | ◇ UNVERIFIED |
| WHWestern Homes Corporation | Woodland | CA | — | ◇ UNVERIFIED |
| WIWestern Iron Enterprises | Las Vegas | NV | — | ◇ UNVERIFIED |
| WMWestern Maine Steel Inc | West Paris | ME | — | ◇ UNVERIFIED |
| WMWestern Metal Lath & Steel Framing System | Riverside | CA | — | ◇ UNVERIFIED |
| WNWestern New York Manufacturing | Buffalo | NY | — | ◇ UNVERIFIED |
| WPWestern Polyform CORP | Riverside | CA | — | ◇ UNVERIFIED |
| WPWestern Precision Manufacturing LLC | Grand Junction | CO | — | ◇ UNVERIFIED |
| WSWestern Steel Fabricators INC | Huntington Park | CA | — | ◇ UNVERIFIED |
| WUWestern Utility Telecom | Salem | OR | — | ◇ UNVERIFIED |
| WVWestern Vents & Curbs | Gilbert | AZ | — | ◇ UNVERIFIED |
| WMWestfab Manufacturing, Inc. | Santa Clara | CA | — | ◇ UNVERIFIED |
| WPWestfield Plastics and Molding, LLC | Westfield | MA | — | ◇ UNVERIFIED |
| 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 |
| WOWest Ouachita Steel & Tank* | West Monroe | LA | — | ◇ UNVERIFIED |
| WFWestside Fabrication and Machining | Plymouth | MI | — | ◇ UNVERIFIED |
| WSWest Side Fabrication, LLC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| WSWest Star Construction | Kingsburg | CA | — | ◇ UNVERIFIED |
| WTWest Tech. Structures LLC | West Valley City | UT | — | ◇ UNVERIFIED |
| WPWestview Products INC | Dallas | OR | — | ◇ UNVERIFIED |
| WVWest Virginia Steel CORP | Charleston | WV | — | ◇ UNVERIFIED |
| WVWest Virginia Steel CORP | Poca | WV | — | ◇ UNVERIFIED |
| WVWest Virginia Steel Corporation | Poca | WV | — | ◇ UNVERIFIED |
| WWWest Warwick Welding, INC. | West Warwick | RI | — | ◇ UNVERIFIED |
| WSWhale Scientific INC | Commerce City | CO | — | ◇ UNVERIFIED |
| WCWheco CORP | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| WIWheeling Investments, Inc. | Payson | AZ | — | ◇ UNVERIFIED |
 Whelan Machine & Tool LLC | Louisville | KY | — | ◇ UNVERIFIED |
| WDWhirley Drink Works | Warren | PA | — | ◇ UNVERIFIED |
| WIWhirley Ind Inc/harmar St | Warren | PA | — | ◇ UNVERIFIED |
| WEWhitacre Engineering CO | Liverpool | NY | — | ◇ UNVERIFIED |
| WFWhite Fab INC | Birmingham | AL | — | ◇ 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 |
| WPWhitesell Precision Components INC | Watson | IN | — | ◇ UNVERIFIED |
| WSWhites Steel, Inc. | Indio | CA | — | ◇ UNVERIFIED |
| WWWhitewater Whirlpool Baths & Systems- Cultured Marble & Fiberglass Casting | Lindon | UT | — | ◇ UNVERIFIED |
| WSWholesale Sheet Metal INC. | Kansas City | KS | — | ◇ UNVERIFIED |
| WBWicked Bumpers,LLC | Dawson | NE | — | ◇ 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. | Harrisburg | NC | — | ◇ UNVERIFIED |
| WIWilbert, INC. | Bellevue | OH | — | ◇ UNVERIFIED |
| WIWilbert INC Dba Wilbert Plastic Services | Lebanon | KY | — | ◇ UNVERIFIED |
| WSWil-clair Sheet Metal, LLC | North Kansas City | MO | — | ◇ UNVERIFIED |
| WMWilco Molding | Maryland Heights | MO | — | ◇ UNVERIFIED |
| WWWildeck West Dba Ladder Industries | Goodyear | AZ | — | ◇ UNVERIFIED |
| WPWilden Plastics | Peachtree City | GA | — | ◇ UNVERIFIED |
 Willamette Technical Fabricators, LLC | Portland | OR | — | ◇ UNVERIFIED |
| WDWilliam D Ludlow | Ontario | CA | — | ◇ UNVERIFIED |
| WKWilliam Kreysler & Associates | Petaluma | CA | — | ◇ UNVERIFIED |
| WRWilliam R Tiffany & Linda E Tiffany | Vale | OR | — | ◇ UNVERIFIED |
| WBWilliams Bridge Company | Bessemer | AL | — | ◇ UNVERIFIED |
| WFWilliams Fabrication, INC. Dba Jenfab | Covington | VA | — | ◇ UNVERIFIED |
| WMWilliams Machine Works INC | Moss Point | MS | — | ◇ UNVERIFIED |
| WMWilliams Machine Works Inc, Facility Number 2 | Pascagoula | MS | — | ◇ UNVERIFIED |
| WSWilliam's Steel Company | Jackson | TN | — | ◇ UNVERIFIED |
| WSWilliams Steel Company | Greensboro | NC | — | ◇ UNVERIFIED |
| WMWill-share Manufacturing, INC. | Saint Peters | MO | — | ◇ UNVERIFIED |
| WFWilmington Fibre Specialty Company, INC. | New Castle | DE | — | ◇ UNVERIFIED |
| WIWilsonart International | Temple | TX | — | ◇ UNVERIFIED |
| WCWilson Composites LLC Pendleton Plt | Pendleton | SC | — | ◇ UNVERIFIED |
| WEWilson Equipment Repair INC | Morgantown | WV | — | ◇ UNVERIFIED |
| WRWilson Railing & Metal Fabricating Company | Park City | IL | — | ◇ UNVERIFIED |
| WCWilton Corporation | Finksburg | MD | — | ◇ UNVERIFIED |
| WTWinbco Tank Company, INC. | Hugoton | KS | — | ◇ UNVERIFIED |
| WIWincup INC | Jacksonville | FL | — | ◇ UNVERIFIED |
| WRWinding Roofing Company INC. | Wauwatosa | WI | — | ◇ UNVERIFIED |
| WLWind-o-shield LLC | Naples | FL | — | ◇ UNVERIFIED |
| WSWindsor Steel , INC | Elkhart | IN | — | ◇ UNVERIFIED |
| WSWine Saver LLC | Powell | OH | — | ◇ UNVERIFIED |
| WWWings West International, INC. | City of Industry | CA | — | ◇ UNVERIFIED |
