| WCWest Coast Steel & Processing Dba Great Pacific Elbow | Chino | CA | — | ◇ UNVERIFIED |
| WCWest Coast Steel & Processing, LLC | Chino | CA | — | ◇ UNVERIFIED |
| WBWestech Building Products | Mount Vernon | IN | — | ◇ UNVERIFIED |
| WAWestern Architectural Services LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| WFWestern Forge & Flange Company | Albany | CA | — | ◇ UNVERIFIED |
 Western Industrial Contractors | Denver | CO | — | ◇ UNVERIFIED |
 Western Industries INC | Watertown | WI | — | ◇ UNVERIFIED |
| WMWestern Metal Lath & Steel Framing System | Riverside | CA | — | ◇ UNVERIFIED |
| WMWestern Metal Specialty | Milwaukee | WI | — | ◇ UNVERIFIED |
| WPWestern Polyform CORP | Riverside | CA | — | ◇ 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 |
| 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 Molding, INC. | Grand Haven | MI | — | ◇ UNVERIFIED |
| WIWestmor Industries LLC - Truck | Morris | MN | — | ◇ UNVERIFIED |
| WIWestmor Industries LLC - Truck Shop | Morris | MN | — | ◇ UNVERIFIED |
| WBWeston Bauman | Shreve | OH | — | ◇ UNVERIFIED |
| WSWest Side Fabrication, LLC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| WTWest Tech. Structures LLC | West Valley City | UT | — | ◇ UNVERIFIED |
| WTWest Tennessee Machine LLC | Camden | TN | — | ◇ UNVERIFIED |
| WDWet Design | North Hollywood | CA | — | ◇ UNVERIFIED |
| WRWeybridge Real Estate Holdings, LLC | Willoughby | OH | — | ◇ UNVERIFIED |
| WSWhale Scientific INC | Commerce City | CO | — | ◇ UNVERIFIED |
| WEWheelabrator Energy Systems | Sturbridge | MA | — | ◇ UNVERIFIED |
| WIWheeling Investments, Inc. | Payson | AZ | — | ◇ UNVERIFIED |
| WNWheels Now Inc. | Waukesha | WI | — | ◇ 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 |
| WDWhirley Drink Works | Warren | PA | — | ◇ UNVERIFIED |
| WIWhirley Ind Inc/harmar St | Warren | PA | — | ◇ UNVERIFIED |
| WSWhitaker Studio | Ivins | UT | — | ◇ UNVERIFIED |
| WCWhited Carl & Son | Livingston | TN | — | ◇ UNVERIFIED |
| WIWhitefield Industrial Coating | Green Bay | WI | — | ◇ UNVERIFIED |
| WGWhite Graphic Systems | Grand Prairie | TX | — | ◇ UNVERIFIED |
| WKWhite Knuckle Kustoms | Windham | ME | — | ◇ UNVERIFIED |
| WOWhite Oak Partners | Portland | ME | — | ◇ UNVERIFIED |
| WOWhite Oak Radiator Service Old Hwy 80 | White Oak | TX | — | ◇ UNVERIFIED |
| WSWhite Sands Pool Plastering, INC | Altamonte Springs | FL | — | ◇ UNVERIFIED |
| WPWhitesell Precision Components INC | Watson | IN | — | ◇ UNVERIFIED |
| WWWhitewater Whirlpool Baths & Systems- Cultured Marble & Fiberglass Casting | Lindon | UT | — | ◇ UNVERIFIED |
| WWWhite Welding Company, INC. | Waterbury | CT | — | ◇ UNVERIFIED |
