| WSWa317948154 - Scafco Corporation | Woodinville | WA | — | ◇ UNVERIFIED |
| WHWa317948445 - Howard Fabrication INC | Ferndale | WA | — | ◇ UNVERIFIED |
| WFWa317948892 - Fab Tech INC | Burlington | WA | — | ◇ UNVERIFIED |
| WWWa317949605 - Washington Iron Works INC | Mount Vernon | WA | — | ◇ UNVERIFIED |
| WMWa317950148 - Monarch Machine Tool CO INC | Pasco | WA | — | ◇ UNVERIFIED |
| WCWa317950680 - Cb Fabricating LLC | Lynden | WA | — | ◇ UNVERIFIED |
| WMWaconia Manufacturing INC | Waconia | MN | — | ◇ UNVERIFIED |
| WIWadco Ind INC | Fontana | CA | — | ◇ UNVERIFIED |
| WSWaite Specialty Machine INC Machine Shop | Longview | WA | — | ◇ UNVERIFIED |
| WGWaldenwood Group LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| WGWaldenwood Group LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| WSWalker Station Equipment Company LLC | Tavares | FL | — | ◇ UNVERIFIED |
| WSWallis Steel, INC | Mound House | NV | — | ◇ UNVERIFIED |
| WLWalpar, LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| WVWalston Ventures, LLC | Beaumont | TX | — | ◇ UNVERIFIED |
| WGWalter G Huerta | Humble | TX | — | ◇ UNVERIFIED |
| WGWalter G Huerta | Humble | TX | — | ◇ UNVERIFIED |
| WEWamble Enterprises, LLC | Columbus | MS | — | ◇ UNVERIFIED |
| WSWard Steel Company INC. | Liverpool | NY | — | ◇ UNVERIFIED |
| WSWarren Steel Holdings LLC | Warren | OH | — | ◇ UNVERIFIED |
| WSWarren Steel Holdings, LLC (0278080015) | Warren | OH | — | ◇ UNVERIFIED |
| WSWarren Steel Products, INC. | Erie | PA | — | ◇ UNVERIFIED |
| WIWashington Iron Works | Arlington | WA | — | ◇ UNVERIFIED |
| WIWashington Iron Works | Edmonds | WA | — | ◇ UNVERIFIED |
| WMWaste Management of Ohio | Cleveland | OH | — | ◇ UNVERIFIED |
| WMWaste Management of Woburn | Woburn | MA | — | ◇ UNVERIFIED |
| WWWater Works Mfg INC Dba Cambridge Metals & Plastic | Cambridge | MN | — | ◇ UNVERIFIED |
| WMWatkins Metal Fabrication | Mineral Wells | TX | — | ◇ UNVERIFIED |
| WBWatson Bowman Acme CORP | Buffalo | NY | — | ◇ UNVERIFIED |
| WWave | Aberdeen | MD | — | ◇ UNVERIFIED |
| WAWaynesboro Alloy Works, INC. | Waynesboro | VA | — | ◇ UNVERIFIED |
| WIWayne's Industrial Maintenance | Douglasville | GA | — | ◇ UNVERIFIED |
| WIWayward Industries LLC | Lewiston | ME | — | ◇ UNVERIFIED |
| WCW C Brown Weldingna INC. | Fontana | CA | — | ◇ UNVERIFIED |
| WAWD3 Associates Inc. | South Holland | IL | — | ◇ UNVERIFIED |
 Weber Specialties Plant Two | Schoolcraft | MI | — | ◇ UNVERIFIED |
| WWWebster's Welding & Fab, LLC | Pell City | AL | — | ◇ UNVERIFIED |
| WSWeibee Steel, INC | Newcastle | OK | — | ◇ UNVERIFIED |
| WWWeir Welding Company, INC. | Bethlehem | PA | — | ◇ UNVERIFIED |
| WMWeisgram Metal Fab-weisgram M | West Fargo | ND | — | ◇ UNVERIFIED |
| WCWelage Corporation | Cincinnati | OH | — | ◇ UNVERIFIED |
| WCWelding Craftsmen | South Easton | MA | — | ◇ UNVERIFIED |
| WFWelding Flux Facility | Niagara Falls | NY | — | ◇ UNVERIFIED |
| WSWeldon Steel - Kennametal Drive | Weldon | NC | — | ◇ UNVERIFIED |
| WIWeldway INC | Oakdale | CA | — | ◇ UNVERIFIED |
| WMWe-mac Manufacturing CO | Atchison | KS | — | ◇ UNVERIFIED |
| WIWesselhoeft, INC. | Moundville | AL | — | ◇ UNVERIFIED |
| WCWest Coast Metal Finishing | Los Angeles | CA | — | ◇ UNVERIFIED |
| WIWestco Iron Works | Livermore | CA | — | ◇ UNVERIFIED |
| WAWestern Architectural Iron CO | Chicago | IL | — | ◇ UNVERIFIED |
