| WEWallner Expac INC | Ontario | CA | — | ◇ UNVERIFIED |
| WTWard Tank | Charlotte | NC | — | ◇ UNVERIFIED |
| WFWarren Fabricating & Machining CORP | Hubbard | OH | — | ◇ UNVERIFIED |
| WAWashington Aluminum | Baltimore | MD | — | ◇ UNVERIFIED |
| WIWashington Iron Works | Gardena | CA | — | ◇ UNVERIFIED |
| WMWaste Management of Ohio | Cleveland | OH | — | ◇ UNVERIFIED |
| WLWastequip Lm Industries Greer Plant | Greer | SC | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing | Beeville | TX | — | ◇ UNVERIFIED |
 Wastequip Manufacturing CO LLC | East Saint Louis | IL | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing Company, Dba May Fab | Brookhaven | MS | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing Company LLC Dba Galbreath LLC Plant #2 East | Winamac | IN | — | ◇ UNVERIFIED |
| WBWatson Bowman Acme CORP | Buffalo | NY | — | ◇ UNVERIFIED |
| WCWear Concepts LLC | Liberty | MO | — | ◇ UNVERIFIED |
| WMWebco Mfg. | Olathe | KS | — | ◇ UNVERIFIED |
| WMWendland Manufacturing | San Angelo | TX | — | ◇ UNVERIFIED |
| WCWest Coast Metalcrafts, INC. | Long Beach | CA | — | ◇ UNVERIFIED |
| WCWest Coast Metal Finishing | Los Angeles | CA | — | ◇ UNVERIFIED |
| WIWesterman, INC. | Skiatook | OK | — | ◇ UNVERIFIED |
| WFWest Facility - South Bearhead Creek Field | Fields | LA | — | ◇ UNVERIFIED |
| WVWest Virginia Steel CORP | Charleston | WV | — | ◇ UNVERIFIED |
| WOWestwood Ornamental Iron INC | Raytown | MO | — | ◇ UNVERIFIED |
| WEWheelabrator Energy Systems | Sturbridge | MA | — | ◇ UNVERIFIED |
| WCWhiskey Creek Farms | Lawton | IA | — | ◇ UNVERIFIED |
| WFWhite Fab INC | Birmingham | AL | — | ◇ UNVERIFIED |
| WWWildeck West Dba Ladder Industries | Goodyear | AZ | — | ◇ UNVERIFIED |
| WMWillerding Metal Fabrication INC | O Fallon | MO | — | ◇ UNVERIFIED |
| WBWilliams Bridge Company | Bessemer | AL | — | ◇ UNVERIFIED |
| WMWilliams Machine Works INC | Moss Point | MS | — | ◇ UNVERIFIED |
| WMWilliams Machine Works Inc, Facility Number 2 | Pascagoula | MS | — | ◇ UNVERIFIED |
| WFWilliamstown Fabricators INC | Parkersburg | WV | — | ◇ UNVERIFIED |
| WWWilsonart - Wichita Kansas | Wichita | KS | — | ◇ UNVERIFIED |
| WEWilson Equipment Repair INC | Morgantown | WV | — | ◇ UNVERIFIED |
| WSWindsor Steel , INC | Elkhart | IN | — | ◇ UNVERIFIED |
| WIWirecrafters, INC. | Louisville | KY | — | ◇ UNVERIFIED |
| WFWitherup Fabricating & Erection | Oil City | PA | — | ◇ UNVERIFIED |
| WPWonderland Products, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| WMWoodbine Mfg CO | Woodbine | IA | — | ◇ UNVERIFIED |
| WGWood Group USA INC - Longmont Facility | Mead Area | CO | — | ◇ UNVERIFIED |
| WMWorld Marine of Mississippi, Llc, West | Pascagoula | MS | — | ◇ UNVERIFIED |
| WAWorthington Armstrong Venture | N Las Vegas | NV | — | ◇ UNVERIFIED |
| WAWorthington Armstrong Venture | Benton Harbor | MI | — | ◇ UNVERIFIED |
| WMWorthington Metal Fabricators, LLC Dba Sharon Stairs (1677011204) | Akron | OH | — | ◇ UNVERIFIED |
 W&w Afco Steel | Lubbock | TX | — | ◇ UNVERIFIED |
| XMXcite Manufacturing LLC Dba Richardson Metals INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| YMYukon Mfg CO | Litchfield | MI | — | ◇ UNVERIFIED |
| ZMZachry Moss Point Fabrication Facility | Moss Point | MS | — | ◇ UNVERIFIED |
| ZCZuckerman CO INC | Winchester | VA | — | ◇ UNVERIFIED |
| 0L084 Lci | Nampa | ID | 20–99 | ◐ LIKELY ACTIVE |
| 0L085 Lci | Goshen | IN | 100–499 | ◐ LIKELY ACTIVE |
| 1T104658 - Tijuana River Barrier | San Diego | CA | 1–19 | ◐ LIKELY ACTIVE |
