| WSWeeks Sheet Metal | Dothan | AL | — | ◇ UNVERIFIED |
| WEW E Hall CO | Eugene | OR | — | ◇ UNVERIFIED |
| WSWeibee Steel, INC | Newcastle | OK | — | ◇ UNVERIFIED |
| WWWeir Welding Company, INC. | Bethlehem | PA | — | ◇ UNVERIFIED |
| WEWeiser Engineering/mile High Precision INC. | Northglenn | CO | — | ◇ UNVERIFIED |
| WMWeisgram Metal Fab-weisgram M | West Fargo | ND | — | ◇ UNVERIFIED |
| WSWeiss Sheet Metal,inc. | Avon | MA | — | ◇ UNVERIFIED |
| WCWelage Corporation | Cincinnati | OH | — | ◇ UNVERIFIED |
| WRWelaka Real Estate Holdings, LLC | Welaka | FL | — | ◇ UNVERIFIED |
| WSWelded Sheet Metal Manufacturing, LLC | Pittsburgh | PA | — | ◇ UNVERIFIED |
| WCWelding Craftsmen | South Easton | MA | — | ◇ UNVERIFIED |
| WMWeldmac Mfg CO | El Cajon | CA | — | ◇ UNVERIFIED |
| WSWeldon Steel - Kennametal Drive | Weldon | NC | — | ◇ UNVERIFIED |
| WRWeld Rite INC. | Ashland | MA | — | ◇ UNVERIFIED |
| WLWeldsource LLC | Cypress | TX | — | ◇ UNVERIFIED |
| WIWeldway INC | Oakdale | CA | — | ◇ UNVERIFIED |
| WWWeld Works LLC | Rochester | NY | — | ◇ UNVERIFIED |
| WFWellman Friction Products Brook Park | Brookpark | OH | — | ◇ UNVERIFIED |
| WSWell Stimulation | Tomball | TX | — | ◇ UNVERIFIED |
| WEWelsh Equipment INC | Dodge Center | MN | — | ◇ UNVERIFIED |
| WMWe-mac Manufacturing CO | Atchison | KS | — | ◇ UNVERIFIED |
| WCWerner Company | Socorro | TX | — | ◇ UNVERIFIED |
| WCWerner Company Louisville | Louisville | KY | — | ◇ UNVERIFIED |
| WFWesco Fountains, INC. | North Venice | FL | — | ◇ UNVERIFIED |
| WSWesco Spring CO | Chicago | IL | — | ◇ UNVERIFIED |
| WMWes Manufacturing, INC. | Santa Clara | CA | — | ◇ 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. | White City | OR | — | ◇ UNVERIFIED |
| WCWest Coast Fabrication INC | Central Point | OR | — | ◇ UNVERIFIED |
| WCWest Coast Fabrication, INC. | White City | OR | — | ◇ UNVERIFIED |
| WCWest Coast Fire Protection Systems Co., INC. | Auburn | CA | — | ◇ UNVERIFIED |
| WMWestcoast Metal Fab INC | Scio | OR | — | ◇ UNVERIFIED |
| WCWest Coast Metal Finishing | Los Angeles | CA | — | ◇ UNVERIFIED |
| WCWest Coast Pipe Inspection Incorporated | Shafter | CA | — | ◇ UNVERIFIED |
| WCWest Coast Rack INC | Los Angeles | CA | — | ◇ 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 |
| WAWestern Architectural Iron CO | Chicago | IL | — | ◇ UNVERIFIED |
| WFWestern Fabrication & Equipment | Bakersfield | CA | — | ◇ UNVERIFIED |
| WFWestern Fabrication, LLC | Las Cruces | NM | — | ◇ UNVERIFIED |
| WFWestern Fabricators | Hesperia | CA | — | ◇ UNVERIFIED |
| WFWestern Forge & Flange Company | Albany | CA | — | ◇ UNVERIFIED |
| WGWestern Group | Portersville | PA | — | ◇ UNVERIFIED |
 Western Industrial Contractors | Denver | CO | — | ◇ UNVERIFIED |
 Western Industries INC | Watertown | WI | — | ◇ 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 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 |
| WGWestfield Grinding Wheel | Westfield | MA | — | ◇ UNVERIFIED |
| WMWest Manufacturing LLC | Carol Stream | IL | — | ◇ UNVERIFIED |
| WMWest Michigan Grinding and Machine, Inc. | Muskegon | MI | — | ◇ UNVERIFIED |
| WBWeston Bauman | Shreve | OH | — | ◇ 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 Tennessee Machine LLC | Camden | TN | — | ◇ 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 |
| WDWet Design | North Hollywood | CA | — | ◇ UNVERIFIED |
| WRWeybridge Real Estate Holdings, LLC | Willoughby | OH | — | ◇ UNVERIFIED |
| WCWheco CORP | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| WMWheeling Machine Pine Bluff | White Hall | AR | — | ◇ UNVERIFIED |
| WNWheels Now Inc. | Waukesha | WI | — | ◇ UNVERIFIED |
 Whelan Machine & Tool LLC | Louisville | KY | — | ◇ UNVERIFIED |
| WIWhemco, INC. | West Homestead | PA | — | ◇ UNVERIFIED |
| WCWhirl-air-flow CORP - Big Lake | Big Lake | MN | — | ◇ UNVERIFIED |
| WCWhirl-air-flow CORP - Mpls | Minneapolis | MN | — | ◇ UNVERIFIED |
| WEWhitacre Engineering CO | Liverpool | NY | — | ◇ UNVERIFIED |
| WSWhitaker Studio | Ivins | UT | — | ◇ UNVERIFIED |
| WCWhited Carl & Son | Livingston | TN | — | ◇ UNVERIFIED |
| WFWhite Fab INC | Birmingham | AL | — | ◇ UNVERIFIED |
| WOWhite Oak Radiator Service Old Hwy 80 | White Oak | TX | — | ◇ UNVERIFIED |
| WPWhitesell Precision Components INC | Watson | IN | — | ◇ UNVERIFIED |
| WSWhites Steel, Inc. | Indio | CA | — | ◇ UNVERIFIED |
| WWWhite Welding Company, INC. | Waterbury | CT | — | ◇ UNVERIFIED |
| WPWhitley Products, INC. | Plymouth | IN | — | ◇ 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 |
| WWWildeck West Dba Ladder Industries | Goodyear | AZ | — | ◇ 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 |
