| UCUnimin Corporation | Gleason | TN | — | ◇ UNVERIFIED |
| URUnited Rentals | San Jose | CA | — | ◇ UNVERIFIED |
 United States Gypsum Company | Spruce Pine | NC | — | ◇ UNVERIFIED |
 Universal Minerals International INC. | Louisville | KY | — | ◇ UNVERIFIED |
| UUrbix | Mesa | AZ | — | ◇ UNVERIFIED |
| UOUsdol Osha- North Aurora | Streator | IL | — | ◇ UNVERIFIED |
| USU.s. Silica Company, | Middleton | TN | — | ◇ UNVERIFIED |
| USUS Silica Kosse Plant | Kosse | TX | — | ◇ UNVERIFIED |
| USUS Steel Corporation | Lorain | OH | — | ◇ UNVERIFIED |
| UTUtica Terminal INC | Utica | IL | — | ◇ UNVERIFIED |
| VMValk Mfg Co/new Kingstown | New Kingstown | PA | — | ◇ UNVERIFIED |
| VMVanderbilt Minerals LLC | Bath | SC | — | ◇ UNVERIFIED |
| VMVigus & Miller Construction INC | Livermore | CA | — | ◇ UNVERIFIED |
| VCVillage Cement | Villa Grove | IL | — | ◇ UNVERIFIED |
| VUViper Underground Mobile Crusher | Washakie | WY | — | ◇ UNVERIFIED |
| VMVoeller Mixers INC | Port Washington | WI | — | ◇ UNVERIFIED |
| VAVogele Amer Inc/chambersburg | Chambersburg | PA | — | ◇ UNVERIFIED |
| VGVolvo Group North America, LLC | Greensboro | NC | — | ◇ UNVERIFIED |
| VCVulcan Const Hanover Quarry & Carmeuse Lime Kilns | Hanover | PA | — | ◇ UNVERIFIED |
| VCVulcan Const Mat LP Anderson Quarry | Anderson | SC | — | ◇ UNVERIFIED |
| VCVulcan Construction Material Limited Partnership Pacolet Quarry | Pacolet | SC | — | ◇ UNVERIFIED |
| WAWa317937913 - Advanced Crusher Technologies INC | Woodland | WA | — | ◇ UNVERIFIED |
| WPWa317939649 - Pyrotek Incorporated | Spokane Valley | WA | — | ◇ UNVERIFIED |
| WPWa317948542 - Peck Raymond | Spanaway | WA | — | ◇ UNVERIFIED |
| WCWa317950910 - Cascade Crane | Bellevue | WA | — | ◇ UNVERIFIED |
| WNWacher Neuson Logistics America (germantown) | Germantown | WI | — | ◇ UNVERIFIED |
| WCWacker CORP | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| WNWacker Neuson Logistics Americas LLC | Germantown | WI | — | ◇ UNVERIFIED |
| WMWarrior Machinery LLC | Bakersfield | CA | — | ◇ UNVERIFIED |
| WEWausau Equipment Company INC | New Berlin | WI | — | ◇ UNVERIFIED |
| WMWaverly Minerals, INC. | Meigs | GA | — | ◇ UNVERIFIED |
| WDWaylite Div Ims/bethlehem | Bethlehem | PA | — | ◇ UNVERIFIED |
| WIWeatherford International, LTD | Kennedale | TX | — | ◇ UNVERIFIED |
| WMWeisgram Metal Fab-weisgram M | West Fargo | ND | — | ◇ UNVERIFIED |
| WMWeldco Manufacturing, LLC | Colbert | OK | — | ◇ UNVERIFIED |
| WPWellesley Public Schools | Wellesley | MA | — | ◇ UNVERIFIED |
| WEWestern Equipment Manufacturing | Corona | CA | — | ◇ UNVERIFIED |
 Western Products | Milwaukee | WI | — | ◇ UNVERIFIED |
| WMWestminster Manufacturing LLC | Westminster | CO | — | ◇ UNVERIFIED |
| WSWestmoreland & Sons Trucking, Inc.- Portable Crushing Plant | Cartersville | GA | — | ◇ UNVERIFIED |
| WMWilco Manufacturing, LLC | Lafayette | LA | — | ◇ UNVERIFIED |
| W1Willies 1 Day Cleaners | San Marcos | CA | — | ◇ UNVERIFIED |
| WSWindber Stone Llc/ogletown Quarry | Windber | PA | — | ◇ UNVERIFIED |
 Wisconsin Oven CORP | East Troy | WI | — | ◇ UNVERIFIED |
| WLW.m Lyles CO | Moreno Valley | CA | — | ◇ UNVERIFIED |
| WLW.m Lyles CO | Temecula | CA | — | ◇ UNVERIFIED |
| WEWoods Equipment CO | Gardner | MA | — | ◇ UNVERIFIED |
| WSWood & Son Cabinet CO. | Anderson | CA | — | ◇ UNVERIFIED |
| XMXcava Mill, LLC | Progreso | TX | — | ◇ UNVERIFIED |
| XLXpo Logistics | Bismarck | ND | — | ◇ UNVERIFIED |
| XMXtreme Manufacturing, LLC. | Henderson | NV | — | ◇ UNVERIFIED |
| YPYorktown Power Station | Yorktown | VA | — | ◇ UNVERIFIED |
| ZIZiegler INC - Bloomington | Minneapolis | MN | — | ◇ UNVERIFIED |
