| WSWell Stimulation | Tomball | TX | — | ◇ UNVERIFIED |
| WEWelsh Equipment INC | Dodge Center | MN | — | ◇ UNVERIFIED |
| WMWe-mac Manufacturing CO | Atchison | KS | — | ◇ UNVERIFIED |
| WPWepco Plastics INC | Middlefield | CT | — | ◇ 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 |
| WCWesmor Cryogenics, LLC | La Porte | TX | — | ◇ UNVERIFIED |
| WIWesselhoeft, INC. | Moundville | AL | — | ◇ UNVERIFIED |
| WAWest American Rubber CO INC | Orange | CA | — | ◇ UNVERIFIED |
| WCWest Central Metal Fab INC | Alexandria | MN | — | ◇ UNVERIFIED |
| WCWest Coast Equipment | Turlock | CA | — | ◇ 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 Metal Buildings INC | Salem | OR | — | ◇ UNVERIFIED |
| WCWest Coast Metal Buildings INC | Salem | OR | — | ◇ UNVERIFIED |
| WMWestcoast Metal Fab INC | Scio | OR | — | ◇ UNVERIFIED |
| WCWest Coast Metal Finishing | Los Angeles | CA | — | ◇ UNVERIFIED |
| WCWest Coast Pallet INC | Pomona | 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 |
| WBWestech Building Products | Mount Vernon | IN | — | ◇ UNVERIFIED |
| WLWestend Laundry INC | New Bedford | MA | — | ◇ UNVERIFIED |
| WAWestern Architectural Iron CO | Chicago | IL | — | ◇ UNVERIFIED |
| WAWestern Architectural Services LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| WDWestern Dovetail, INC | Vallejo | CA | — | ◇ 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 |
| WMWestern Metal Specialty | Milwaukee | WI | — | ◇ UNVERIFIED |
| WMWestern Mill Fabricators, INC | Placentia | CA | — | ◇ UNVERIFIED |
| WNWestern New York Manufacturing | Buffalo | NY | — | ◇ UNVERIFIED |
| WPWestern Polyform CORP | Riverside | CA | — | ◇ UNVERIFIED |
| WPWestern Precision Manufacturing LLC | Grand Junction | CO | — | ◇ UNVERIFIED |
| WRWestern Rubber & Supply | Livermore | CA | — | ◇ UNVERIFIED |
| WSWestern Sheet Metals, Inc. | Corona | CA | — | ◇ UNVERIFIED |
| WSWestern Steel Fabricators INC | Huntington Park | CA | — | ◇ UNVERIFIED |
| WTWestern Tile and Marble | Redmond | WA | — | ◇ 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 |
| WPWestfield Plastics and Molding, LLC | Westfield | MA | — | ◇ UNVERIFIED |
| WEWestinghouse Electric Company | Shoreview | MN | — | ◇ 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 Manufacturing LLC | Carol Stream | IL | — | ◇ UNVERIFIED |
| WMWest Michigan Grinding and Machine, Inc. | Muskegon | MI | — | ◇ UNVERIFIED |
| WMWest Michigan Lift and Dock LLC | Holland | MI | — | ◇ UNVERIFIED |
| WMWest Michigan Molding, INC. | Grand Haven | MI | — | ◇ UNVERIFIED |
| WIWestmor Industries LLC - Truck Shop | Morris | MN | — | ◇ UNVERIFIED |
| WBWeston Bauman | Shreve | OH | — | ◇ UNVERIFIED |
| WOWest Ouachita Steel & Tank* | West Monroe | LA | — | ◇ UNVERIFIED |
| WPWest Pharmaceutical Services | Lionville | PA | — | ◇ UNVERIFIED |
| WPWest Pharmaceutical Services | Kinston | NC | — | ◇ UNVERIFIED |
| WPWest Pharmaceutical Services of Florida | Clearwater | FL | — | ◇ 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 |
| 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 |
| WCWexford Collection | Carson | CA | — | ◇ UNVERIFIED |
| WRWeybridge Real Estate Holdings, LLC | Willoughby | OH | — | ◇ UNVERIFIED |
| WFW Forge Holdings, INC. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| WGW Group Construction, Inc. | Fairfax | VA | — | ◇ UNVERIFIED |
| WSWhale Scientific INC | Commerce City | CO | — | ◇ UNVERIFIED |
| WSWheatland Steel & Trim, INC. | Tower City | ND | — | ◇ UNVERIFIED |
| WCWheco CORP | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| WEWheelabrator Energy Systems | Sturbridge | MA | — | ◇ UNVERIFIED |
| WIWheeling Investments, Inc. | Payson | AZ | — | ◇ UNVERIFIED |
| WNWheels Now Inc. | Waukesha | WI | — | ◇ UNVERIFIED |
 Whelan Machine & Tool LLC | Louisville | KY | — | ◇ UNVERIFIED |
| WIWhemco, INC. | West Homestead | PA | — | ◇ UNVERIFIED |
| WIWhip Industries INC | Fort Worth | TX | — | ◇ UNVERIFIED |
| WCWhirl-air-flow CORP - Big Lake | Big Lake | MN | — | ◇ UNVERIFIED |
| WCWhirl-air-flow CORP - Mpls | Minneapolis | MN | — | ◇ UNVERIFIED |
| WDWhirley Drink Works | Warren | PA | — | ◇ UNVERIFIED |
| WIWhirley Ind Inc/harmar St | Warren | PA | — | ◇ UNVERIFIED |
| WBWhirlwind Bldg Systems | Houston | TX | — | ◇ UNVERIFIED |
