| WEWhitacre Engineering CO | Liverpool | NY | — | ◇ UNVERIFIED |
| WSWhitaker Studio | Ivins | UT | — | ◇ UNVERIFIED |
| WCWhited Carl & Son | Livingston | TN | — | ◇ UNVERIFIED |
| WPWhitesell Precision Components INC | Watson | IN | — | ◇ UNVERIFIED |
| WSWhites Steel, Inc. | Indio | CA | — | ◇ UNVERIFIED |
| WWWhite Welding Company, INC. | Waterbury | CT | — | ◇ UNVERIFIED |
| WEWhitman Enterprises, Inc. | Lakeland | FL | — | ◇ UNVERIFIED |
| WTWhitworth Tool, INC. | Sample | KY | — | ◇ UNVERIFIED |
| WSWholesale Sheet Metal INC. | Kansas City | KS | — | ◇ UNVERIFIED |
| WBWicked Bumpers,LLC | Dawson | NE | — | ◇ UNVERIFIED |
| WDWilburn Darryl Donna | Pineville | LA | — | ◇ UNVERIFIED |
| WSWil-clair Sheet Metal, LLC | North Kansas City | MO | — | ◇ UNVERIFIED |
| WAWilkes and Mclean, LTD. | Schaumburg | IL | — | ◇ UNVERIFIED |
 Willamette Technical Fabricators, LLC | Portland | OR | — | ◇ UNVERIFIED |
| WIWillfab, INC. | Marietta | GA | — | ◇ UNVERIFIED |
| WDWilliam D Ludlow | Ontario | CA | — | ◇ UNVERIFIED |
| WRWilliam R Tiffany & Linda E Tiffany | Vale | OR | — | ◇ UNVERIFIED |
| WFWilliams Fabrication, INC. Dba Jenfab | Covington | VA | — | ◇ UNVERIFIED |
| WSWilliam's Steel Company | Jackson | TN | — | ◇ UNVERIFIED |
| WSWilliams Steel Company | Greensboro | NC | — | ◇ UNVERIFIED |
| WCWillis Cnc, LLC | Grafton | OH | — | ◇ UNVERIFIED |
| WMWill-share Manufacturing, INC. | Saint Peters | MO | — | ◇ UNVERIFIED |
| WPWills Pro Custom Mfg | Fort Worth | TX | — | ◇ UNVERIFIED |
| WFWilson Fab, LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| WRWilson Railing & Metal Fabricating Company | Park City | IL | — | ◇ UNVERIFIED |
| WIWiltcher Industries, INC. | Ocala | FL | — | ◇ UNVERIFIED |
| WCWilton Corporation | Finksburg | MD | — | ◇ UNVERIFIED |
| WTWinbco Tank Company, INC. | Hugoton | KS | — | ◇ UNVERIFIED |
| WMWinchester Metals INC | Winchester | VA | — | ◇ UNVERIFIED |
| WIWincraft INC - Corporate Office | Winona | MN | — | ◇ UNVERIFIED |
| WIWincraft INC - Distribution Center | Winona | MN | — | ◇ UNVERIFIED |
| WIWincraft INC - East Facility | Winona | MN | — | ◇ UNVERIFIED |
| WIWincraft INC - Mark Street | Winona | MN | — | ◇ UNVERIFIED |
| WIWincraft INC - West Facility | Winona | MN | — | ◇ UNVERIFIED |
| WRWinding Roofing Company INC. | Wauwatosa | WI | — | ◇ UNVERIFIED |
 Win-holt Equipment CORP. | Allentown | PA | — | ◇ UNVERIFIED |
| WHWinona Heating - Ventilating Company | Winona | MN | — | ◇ UNVERIFIED |
| WPWinona Production Services INC - East Building | Winona | MN | — | ◇ UNVERIFIED |
| WIWinston Industrial Fabrication, LLC | Warminster | PA | — | ◇ UNVERIFIED |
| WIWinston Industries, INC. | Ivyland | PA | — | ◇ UNVERIFIED |
| WEWinter Equipment Company | Willoughby | OH | — | ◇ UNVERIFIED |
| WIW International LLC | Madison Heights | MI | — | ◇ UNVERIFIED |
| WGWire Guard Systems INC | Huntington Park | CA | — | ◇ UNVERIFIED |
| WSWitts Services, LLC | Bergholz | OH | — | ◇ UNVERIFIED |
| WHWj Haas Manufacturing Corporation | Hastings | MN | — | ◇ UNVERIFIED |
| WPWjm Partners INC. | East Bernard | TX | — | ◇ UNVERIFIED |
| WVWnco Valve International, INC. | Odessa | TX | — | ◇ UNVERIFIED |
| WWWoerner Wire Works, INC. | Omaha | NE | — | ◇ UNVERIFIED |
| WIWolf Industries INC | Portland | OR | — | ◇ UNVERIFIED |
| WTWolf Technologies, LLC | Douglassville | PA | — | ◇ UNVERIFIED |
