| WTWhitworth Tool, INC. | Sample | KY | — | ◇ UNVERIFIED |
| WSWholesale Sheet Metal INC. | Kansas City | KS | — | ◇ UNVERIFIED |
| WFWhyco Finishing Tech INC | Thomaston | CT | — | ◇ UNVERIFIED |
| WIWiberg I, LLC and Wiberg II, LLC as Tenants in Common | Waukesha | WI | — | ◇ UNVERIFIED |
| WWWicked Weaponry LLC | Hooksett | NH | — | ◇ UNVERIFIED |
| WPWicklander Printing CORP | Chicago | IL | — | ◇ UNVERIFIED |
| WMWieber Machine, LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| WRWiegmann & Rose | Oakland | CA | — | ◇ UNVERIFIED |
| WSWie Sic Machine, INC. | Lowell | MA | — | ◇ UNVERIFIED |
| WTWiesmann Tool Inc. | Alpharetta | GA | — | ◇ UNVERIFIED |
| WPWiggby Precision Machine CORP | Brooklyn | NY | — | ◇ UNVERIFIED |
| WDWilburn Darryl Donna | Pineville | LA | — | ◇ UNVERIFIED |
| WMWilco Mach and Fabrication INC / Nov Wilco North | Marlow | OK | — | ◇ UNVERIFIED |
| WDWilderness Design & Manufacturing INC | Orem | UT | — | ◇ UNVERIFIED |
| WIWildhawk Investments, Inc | Sacramento | CA | — | ◇ UNVERIFIED |
| WMWildridge Machine, LLC | Lexington | TN | — | ◇ UNVERIFIED |
| WMWildwood Metals, INC. | Fresno | CA | — | ◇ UNVERIFIED |
| WAWilkes and Mclean, LTD. | Schaumburg | IL | — | ◇ UNVERIFIED |
| WVWillamette Valley Company - Precision Technologies | Eugene | OR | — | ◇ UNVERIFIED |
| WAWillenborg Associates, INC. | Imlay City | MI | — | ◇ UNVERIFIED |
| WIWillfab, INC. | Marietta | GA | — | ◇ UNVERIFIED |
| WTWillhoite Tool Company INC | Georgetown | KY | — | ◇ UNVERIFIED |
| WCWilliam Collins Company | Central Falls | RI | — | ◇ UNVERIFIED |
| WJWilliam J Labb Sons | Philadelphia | PA | — | ◇ UNVERIFIED |
| WRWilliam R Tiffany & Linda E Tiffany | Vale | OR | — | ◇ UNVERIFIED |
| WBWilliams Bayou Long #1 Facility | Jeanerette | LA | — | ◇ UNVERIFIED |
| WCWilliams Company INC. | Whiting | KS | — | ◇ UNVERIFIED |
| WSWilliam Scott | Oaklyn | NJ | — | ◇ UNVERIFIED |
| WDWilliams & Davis Boilers | Hutchins | TX | — | ◇ UNVERIFIED |
| WFWilliams Fabrication, INC. Dba Jenfab | Covington | VA | — | ◇ UNVERIFIED |
| WFWilliams Finishing INC | Livonia | MI | — | ◇ UNVERIFIED |
| WHWilliams Healthcare Systems LLC | Elgin | IL | — | ◇ UNVERIFIED |
| WIWilliams International (b6415) | Walled Lake | MI | — | ◇ UNVERIFIED |
| WMWilliams Machine Works Inc, Facility Number 2 | Pascagoula | MS | — | ◇ UNVERIFIED |
| WMWilliams Manufacturing | Lake Elsinore | CA | — | ◇ UNVERIFIED |
| WMWilliams Metalfinishing/sinking Spring | Sinking Spring | PA | — | ◇ UNVERIFIED |
| WPWilliamson Polishing & Plating Co., INC. | Indianapolis | IN | — | ◇ UNVERIFIED |
| WFWilliamsport Foundry Co/williamsport | Williamsport | PA | — | ◇ UNVERIFIED |
| WSWilliams & Sons Masonry | El Cajon | CA | — | ◇ UNVERIFIED |
| WFWilliamstown Fabricators INC | Parkersburg | WV | — | ◇ UNVERIFIED |
| WCWillis Cnc, LLC | Grafton | OH | — | ◇ UNVERIFIED |
| WCWillis Commercial, LLC | Windsor | CT | — | ◇ UNVERIFIED |
| WTWillmore Tool & Die INC | Gallatin | TN | — | ◇ UNVERIFIED |
| WPWills Pro Custom Mfg | Fort Worth | TX | — | ◇ UNVERIFIED |
| WMWilo Machine CO | Cedarburg | WI | — | ◇ UNVERIFIED |
| WUWilo USA | Cedarburg | WI | — | ◇ UNVERIFIED |
| WIWilsey INC. | Chadwicks | NY | — | ◇ UNVERIFIED |
| WFWilson Fab, LLC | Sarasota | FL | — | ◇ UNVERIFIED |
| WMWilson Machine LLC | Arcola | MO | — | ◇ UNVERIFIED |
| WMWilson Mold & Machine Corporation | Wilson | NC | — | ◇ UNVERIFIED |
| WRWilson Railing & Metal Fabricating Company | Park City | IL | — | ◇ UNVERIFIED |
| WSWilson Supply Inc/harrisburg | Harrisburg | PA | — | ◇ UNVERIFIED |
| WTWilson Tool Corporation | Rockford | IL | — | ◇ UNVERIFIED |
| WIWiltcher Industries, INC. | Ocala | FL | — | ◇ UNVERIFIED |
 Wilwood Engineering | Camarillo | CA | — | ◇ UNVERIFIED |
| WCWinchester Coatings INC | Winchester | KY | — | ◇ UNVERIFIED |
| WMWinchester Metals INC | Winchester | VA | — | ◇ UNVERIFIED |
| WLWinchester/useco Litton Sys | Van Nuys | CA | — | ◇ UNVERIFIED |
| WSWinco Stamping, INC. | Miamisburg | OH | — | ◇ 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 |
| WHWindmill Holdings, LLC | Hamilton | MT | — | ◇ UNVERIFIED |
| WAWindsor Airmotive | East Granby | CT | — | ◇ UNVERIFIED |
| WIW Industries | Detroit | MI | — | ◇ UNVERIFIED |
| WCWindy City Cutting Die, Inc. | Bensenville | IL | — | ◇ UNVERIFIED |
| WKWindy Knoll Machine, LLC | Sugarcreek | OH | — | ◇ UNVERIFIED |
 Win-holt Equipment CORP. | Allentown | PA | — | ◇ UNVERIFIED |
| WMWinnebago Manufacturing CO | Blue Earth | MN | — | ◇ UNVERIFIED |
| WHWinona Heating - Ventilating Company | Winona | MN | — | ◇ UNVERIFIED |
| WPWinona Production Services, INC. | Winona | MN | — | ◇ UNVERIFIED |
| WPWinona Production Services INC - East Building | Winona | MN | — | ◇ UNVERIFIED |
| WPWinona Pvd Coatings, LLC | Warsaw | IN | — | ◇ UNVERIFIED |
| WIWinston Industrial Fabrication, LLC | Warminster | PA | — | ◇ UNVERIFIED |
| WIWinston Industries, INC. | Ivyland | PA | — | ◇ UNVERIFIED |
| WAWinter and Bain Manufacturing INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| WEWinter Equipment Company | Willoughby | OH | — | ◇ UNVERIFIED |
| WIW International LLC | Madison Heights | MI | — | ◇ UNVERIFIED |
| WMWinterville Machine Works, INC | Winterville | NC | — | ◇ UNVERIFIED |
| WCWirco Castings INC | New Athens | IL | — | ◇ UNVERIFIED |
| WMWiregrass Machine, INC. | Dothan | AL | — | ◇ UNVERIFIED |
| WGWire Guard Systems INC | Huntington Park | CA | — | ◇ UNVERIFIED |
| WSWireless Structures Consulting INC | Salem | OR | — | ◇ UNVERIFIED |
| WMWire Mesh Corporation | Saint Matthews | SC | — | ◇ UNVERIFIED |
| WRWire Rope Corporation of America-kansas City | Kansas City | MO | — | ◇ UNVERIFIED |
| WWWire Works, INC. | Milford | CT | — | ◇ UNVERIFIED |
| WMWirtz Manufacturing Co., INC. Plant 4 | Port Huron | MI | — | ◇ UNVERIFIED |
| WEWisconsin Engraving Company, Inc. | New Berlin | WI | — | ◇ UNVERIFIED |
| WPWisconsin Plating Works, INC. | Racine | WI | — | ◇ UNVERIFIED |
| WSWisconsin Superior Painting & Coating LLC | Oshkosh | WI | — | ◇ UNVERIFIED |
| WCWise County Detail & Fabrication | Rhome | TX | — | ◇ UNVERIFIED |
| WMWiser Manufacturing | Benson | UT | — | ◇ UNVERIFIED |
| WCWizard Control Systems INC | Salem | OR | — | ◇ UNVERIFIED |
| WMWjb Mil-spec Services LLC Dba American Mil-spec Se | Fort Worth | TX | — | ◇ UNVERIFIED |
| WHWj Haas Manufacturing Corporation | Hastings | MN | — | ◇ UNVERIFIED |
| WMWJ Molding Inc. | Schaumburg | IL | — | ◇ UNVERIFIED |
| WMWj Molding INC. | Schaumburg | IL | — | ◇ UNVERIFIED |
