| WRWilco Refining LLC | Albany | KY | — | ◇ UNVERIFIED |
| WRWildcatter Redi-mix Paisano | Fort Worth | TX | — | ◇ UNVERIFIED |
| WIWillcan, Inc. | Calhoun | GA | — | ◇ UNVERIFIED |
| WIWillcan, INC. Dba Basic Ready Mix-calhoun | Calhoun | GA | — | ◇ UNVERIFIED |
| WBWille Brothers CO INC | Monee | IL | — | ◇ UNVERIFIED |
| WBWille Brothers Lemont | Lemont | IL | — | ◇ UNVERIFIED |
| WCWilliamson CO Ready Mix Concrete CO | Nashville | TN | — | ◇ UNVERIFIED |
| WSWilliamson & Sons Marine Construction INC | Cape Coral | FL | — | ◇ UNVERIFIED |
| WRWilliams Ready Mix Products, INC. | Monroe | NC | — | ◇ UNVERIFIED |
| WPWillis Plant | Willis | TX | — | ◇ UNVERIFIED |
| WCWil-mix Concrete Products | Festus | MO | — | ◇ UNVERIFIED |
| WCWilson Concrete Products LLC | Webb City | MO | — | ◇ UNVERIFIED |
| WCWilsonville Concrete Products | Wilsonville | OR | — | ◇ UNVERIFIED |
| WCWilsonville Concrete Products | Beaverton | OR | — | ◇ UNVERIFIED |
| WCWindsor Concrete Co-windsor Concrete CO | Windsor | MO | — | ◇ UNVERIFIED |
| WCWine Concrete Products, INC. | Sewickley | PA | — | ◇ UNVERIFIED |
| WFWingate Fractionator | Rehoboth | NM | — | ◇ UNVERIFIED |
| WRWingra Redi Mix | Waunakee | WI | — | ◇ UNVERIFIED |
| WPWinkelman Plant #546 | Winkelman | AZ | — | ◇ UNVERIFIED |
| WCWinnemucca Concrete Batch Plant | Winnemucca | NV | — | ◇ UNVERIFIED |
| WAWinters Aggregates | Winters | CA | — | ◇ UNVERIFIED |
| WNWinterville - Nc Rmc | Winterville | NC | — | ◇ UNVERIFIED |
| WBWl Byrne INC | Middleborough | MA | — | ◇ UNVERIFIED |
| WIWolco, INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| WCWoodburn Concrete | Woodburn | OR | — | ◇ UNVERIFIED |
| WPWoodland Plant | Woodland | CA | — | ◇ UNVERIFIED |
| WSWoodruff Supply CO INC | Madisonville | KY | — | ◇ UNVERIFIED |
| WRWoodsboro Ready-mix Concrete Plant | Woodsboro | MD | — | ◇ UNVERIFIED |
| WEWorld Energy Elk Grove LLC | Elk Grove | CA | — | ◇ UNVERIFIED |
| WOWorld Oil CO #2 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Company #68 | Huntington Beach | CA | — | ◇ UNVERIFIED |
| WOWorld Oil CORP | Bakersfield | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Co, Ss# 17 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil CO Ss# 63 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing CO #1 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing CO #106 | Rancho Mirage | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing CO #13 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Company | Fullerton | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Company #42 | Newport Beach | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Co., Ss #60 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Co, Station #65 | West Hollywood | CA | — | ◇ UNVERIFIED |
| WPWpr - Plant 1 | Milton | FL | — | ◇ UNVERIFIED |
| WRWray Readi Mix INC. | Wray | CO | — | ◇ UNVERIFIED |
| WRW R Forde Associates | Richmond | CA | — | ◇ UNVERIFIED |
| WCWright Concrete Recycling INC | Markham | IL | — | ◇ UNVERIFIED |
| WEWylatti Enterprises LLC Dba Geo Aggregates | Fort Bragg | CA | — | ◇ UNVERIFIED |
| XMXpress Materials LLC | Panama City Beach | FL | — | ◇ UNVERIFIED |
| XIXt Incorporated Dba Vanhooseco, Loudon | Loudon | TN | — | ◇ UNVERIFIED |
| YMYager Materials INC | Hawesville | KY | — | ◇ UNVERIFIED |
| YAYamada and Sons | Hilo | HI | — | ◇ UNVERIFIED |
| YRYarrington Road Materials LP | San Marcos | TX | — | ◇ UNVERIFIED |
| YCYates Construction Concrete Plant | Calion | AR | — | ◇ UNVERIFIED |
| YBYellow Banks River Terminal LLC | Owensboro | KY | — | ◇ UNVERIFIED |
| YCYellowstone Cody Refinery | Cody | WY | — | ◇ UNVERIFIED |
| YSYesenia S Heredia Dba Heredia's Concrete | Byron | CA | — | ◇ UNVERIFIED |
| YFYohnco Forest City Ready Mix | Forest City | IA | — | ◇ UNVERIFIED |
| YBYork Building Products CO Inc/new Holland | New Holland | PA | — | ◇ UNVERIFIED |
| ZCZachry Construction | Kernersville | NC | — | ◇ UNVERIFIED |
| ZCZachry Construction Corporation Cbp #34-0120 | Lexington | SC | — | ◇ UNVERIFIED |
| ZCZachry Construction Kpi Pugmill 415356 | Lexington | SC | — | ◇ UNVERIFIED |
| ZCZachry Construction - Portable Concrete Batch Plant 518-502 | Statesville | NC | — | ◇ UNVERIFIED |
| ZRZamcrete Ready-mix | Houston | TX | — | ◇ UNVERIFIED |
| ZSZellar Sanitation, INC. | Manistique | MI | — | ◇ UNVERIFIED |
| ZEZenith Energy Terminals Holdings LLC - Portland Terminal | Portland | OR | — | ◇ UNVERIFIED |
| ZRZimmerly Ready Mix CO | Marshall | IL | — | ◇ UNVERIFIED |
| ZRZimmerly Ready Mix CO INC | Paris | IL | — | ◇ UNVERIFIED |
| ZRZimmerly Ready Mix CO INC | Chrisman | IL | — | ◇ UNVERIFIED |
| ZZupan&smith:powderville | Powdersville | SC | — | ◇ UNVERIFIED |
| ZSZupan & Smith Sand & Concrete Simpsonville | Simpsonville | SC | — | ◇ UNVERIFIED |