| WIWashington Iron Works | Arlington | WA | — | ◇ UNVERIFIED |
| WIWashington Iron Works | Edmonds | WA | — | ◇ UNVERIFIED |
| WIWasp INC Conveyor Division | Glenwood | MN | — | ◇ UNVERIFIED |
| WEWaste Equipment of Pr INC | Carolina | PR | — | ◇ UNVERIFIED |
| WKWaste King | Los Angeles | CA | — | ◇ UNVERIFIED |
| WMWaste Management Ellensburg Recycling | Ellensburg | WA | — | ◇ UNVERIFIED |
| WMWaste Management - Fairbanks Landfill | Houston | TX | — | ◇ UNVERIFIED |
| WMWaste Management of Ohio | Cleveland | OH | — | ◇ UNVERIFIED |
| WMWaste Management of Woburn | Woburn | MA | — | ◇ UNVERIFIED |
| WIWastequip, INC. | Mulberry | FL | — | ◇ UNVERIFIED |
 Wastequip Manufacturing CO Dba Rayfo | Marissa | IL | — | ◇ UNVERIFIED |
| WMWastequip Manufacturing Company | Alexandria | LA | — | ◇ 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 |
| WRWatts Regulator Company | Woodland | CA | — | ◇ UNVERIFIED |
| WWave | Aberdeen | MD | — | ◇ UNVERIFIED |
| WMWayne Manufacturing Co., L.c. | Chariton | IA | — | ◇ UNVERIFIED |
| WAWaynesboro Alloy Works, INC. | Waynesboro | VA | — | ◇ UNVERIFIED |
| WSWayne Sheet Metal and Fabrication, LLC. | Jesup | GA | — | ◇ UNVERIFIED |
| WIWayne's Industrial Maintenance | Douglasville | GA | — | ◇ UNVERIFIED |
| WIWayward Industries LLC | Lewiston | ME | — | ◇ UNVERIFIED |
| WBWc Brown Welding INC | Rialto | CA | — | ◇ UNVERIFIED |
| WCW C Brown Weldingna INC. | Fontana | CA | — | ◇ UNVERIFIED |
| WAWD3 Associates Inc. | South Holland | IL | — | ◇ UNVERIFIED |
| WSWeatherport Shelter Systems LLC | Olathe | CO | — | ◇ UNVERIFIED |
| WTWeather Tite Industries INC | Watertown | TN | — | ◇ UNVERIFIED |
| WCWebb Cutting Components | Grand Island | NE | — | ◇ UNVERIFIED |
| WBWeber Building Components LLC | Nevada | MO | — | ◇ UNVERIFIED |
 Weber Specialties Plant Two | Schoolcraft | MI | — | ◇ UNVERIFIED |
| WWWebster's Welding & Fab, LLC | Pell City | AL | — | ◇ UNVERIFIED |
| 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 |
