| WCWarren County Concrete - Mexico | Mexico | MO | — | ◇ UNVERIFIED |
| WCWarren County Concrete - Moberly | Cairo | MO | — | ◇ UNVERIFIED |
| WCWarren County Concrete - New Florence | New Florence | MO | — | ◇ UNVERIFIED |
| WCWarren County Concrete - Troy | Troy | MO | — | ◇ UNVERIFIED |
| WOWarrior Operations INC | Warrior | AL | — | ◇ UNVERIFIED |
| WRWarrior Ready Mix | Warrior | AL | — | ◇ UNVERIFIED |
| WRWarsaw Ready-mix | Warsaw | MO | — | ◇ UNVERIFIED |
| WGWashington Group-alberici | Olmsted | IL | — | ◇ UNVERIFIED |
| W2Waste 2 Energy Env. | Casa Grande | AZ | — | ◇ UNVERIFIED |
| WRWatauga Ready Mix Sparta Plant | Sparta | NC | — | ◇ UNVERIFIED |
| WLWatesco LLC | Doniphan | MO | — | ◇ UNVERIFIED |
| WCWaugh Chapel Plant | Gambrills | MD | — | ◇ UNVERIFIED |
| WWWa Wsu Long Beach Research and Ext Unit | Long Beach | WA | — | ◇ UNVERIFIED |
| WBWaxahachie Batch Plant 1 | Waxahachie | TX | — | ◇ UNVERIFIED |
| WPWaxahachie Plant | Waxahachie | TX | — | ◇ UNVERIFIED |
| WRWayland Ready Mix Concrete & Fertilizer | Macomb | IL | — | ◇ UNVERIFIED |
| WDWayne Davis Concrete | Rockmart | GA | — | ◇ UNVERIFIED |
| WDWayne Davis Concrete - Lanett | Lanett | AL | — | ◇ UNVERIFIED |
| WDWayne Davis Concrete - Villa Rica | Villa Rica | GA | — | ◇ UNVERIFIED |
| WDWayne Davis Concrete - Wedowee | Wedowee | AL | — | ◇ UNVERIFIED |
| WCW C Lowery Incorporated | Callao | VA | — | ◇ UNVERIFIED |
| WIWcp INC | Salem | OR | — | ◇ UNVERIFIED |
| WIWcp INC | Wilsonville | OR | — | ◇ UNVERIFIED |
| WCWebb Concrete - Oxford | Oxford | AL | — | ◇ UNVERIFIED |
| WCWebber Cbp and Office Complex | Houston | TX | — | ◇ UNVERIFIED |
| WUWebber - United, LLC | Macon | GA | — | ◇ UNVERIFIED |
| WCWeddle Concrete | Jefferson | OR | — | ◇ UNVERIFIED |
| WCWekiwa Concrete Products | Zellwood | FL | — | ◇ UNVERIFIED |
| WBWelch Brothers Belvidere INC | Belvidere | IL | — | ◇ UNVERIFIED |
| WHWellington Hamrick, INC. | Boiling Springs | NC | — | ◇ UNVERIFIED |
| WHWellington Hamrick Precast, INC. | Boiling Springs | NC | — | ◇ UNVERIFIED |
| WGWells Group LLC the | Salyersville | KY | — | ◇ UNVERIFIED |
| WGWells Group LLC the | Prestonsburg | KY | — | ◇ UNVERIFIED |
| WGWells Group LLC the | Jenkins | KY | — | ◇ UNVERIFIED |
| WRWelsch Ready Mix INC | Midlothian | IL | — | ◇ UNVERIFIED |
| WRWelsch Ready Mix INC | Summit | IL | — | ◇ UNVERIFIED |
| WRWelsch Ready Mix INC | Frankfort | IL | — | ◇ UNVERIFIED |
| WRWelsch Ready-mix INC | Morris | IL | — | ◇ UNVERIFIED |
| WRWelsch Ready Mix Plant | Chicago | IL | — | ◇ UNVERIFIED |
| WCWerner Construction Lo Pro | Various | NE | — | ◇ UNVERIFIED |
| WAWest Alabama Ready Mix - Jasper Facility | Jasper | AL | — | ◇ UNVERIFIED |
| WCWestar Concrete Company-antire Quarry | Eureka | MO | — | ◇ UNVERIFIED |
| WCWestbrook Constr | Cenver | CO | — | ◇ UNVERIFIED |
| WCWest Central Concrete Llc-warsaw Plant | Warsaw | MO | — | ◇ UNVERIFIED |
| WCWest Coast Concrete | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| WCWest Coast Materials | Oakdale | CA | — | ◇ UNVERIFIED |
| WCWest Coast Outlaws INC | Sacramento | CA | — | ◇ UNVERIFIED |
| WCWest Continental Auto Parts Company | Maryland Heights | MO | — | ◇ UNVERIFIED |
| WEWest End Materials | Bridgeton | MO | — | ◇ UNVERIFIED |
| WEWestern Engineering CO Lo Pro | North Platte | NE | — | ◇ UNVERIFIED |