| 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 | Prestonsburg | KY | — | ◇ UNVERIFIED |
| WGWells Group LLC the | Salyersville | KY | — | ◇ UNVERIFIED |
| WGWells Group LLC the | Jenkins | KY | — | ◇ UNVERIFIED |
| WRWelsch Ready Mix INC | Midlothian | IL | — | ◇ UNVERIFIED |
| WRWelsch Ready Mix INC | Frankfort | IL | — | ◇ UNVERIFIED |
| WRWelsch Ready Mix INC | Summit | 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 |
| WMWestern Mobile Boulder, INC. | Estes Park | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Denver INC | Golden | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile INC | Greeley | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Avon Plt | Avon | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Bayfield Pit | Walden 18.5 Mi. Se of | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Craig Plt | Craig | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern (mtn Mobile Mix) | Meeker | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Was Flatirons Concrete | Fort Collins | CO | — | ◇ UNVERIFIED |
| WNWestern Ny Concrete CORP. | Batavia | NY | — | ◇ UNVERIFIED |
| WPWestern Paving.cn | Arvada | CO | — | ◇ UNVERIFIED |
 Western Ready Mix Concrete | Orland | CA | — | ◇ UNVERIFIED |
| Western Ready Mix Concrete CO | Red Bluff, Ca | CA | — | ◇ UNVERIFIED |
| Western Ready Mix Concrete INC. | Colusa | CA | — | ◇ UNVERIFIED |
| Western Ready Mix, INC (orland) | Hamilton City | CA | — | ◇ UNVERIFIED |
| Western Ready Mix,inc (willows) | Willows | CA | — | ◇ UNVERIFIED |
| WRWestern Rock Products Corporation- Sorenson Pit | Saint George | UT | — | ◇ UNVERIFIED |
| WSWestern Sand and Gravel CO LLC | Spring Valley | IL | — | ◇ UNVERIFIED |
| WSWestern Sand & Gravel CO | Mendota | IL | — | ◇ UNVERIFIED |
| WSWestern Slope Aggregate | Carbondale | CO | — | ◇ UNVERIFIED |
| WSWestern Slope Concrete Aka Beaver Bros. | Craig | CO | — | ◇ UNVERIFIED |
| WRWestfield Ready Mix INC | Westfield | MA | — | ◇ UNVERIFIED |
| WGWest Georgia Industries | Lagrange | GA | — | ◇ UNVERIFIED |
| WLWest Land and Equipment, LLC | Jefferson City | MO | — | ◇ UNVERIFIED |
| WPWestover Plant | Westover | AL | — | ◇ UNVERIFIED |
| WRWest Ranch Aggregate - Port Generator | Rocky Ford Area | CO | — | ◇ UNVERIFIED |
| WRWest Ready Mix, INC. | Helenwood | TN | — | ◇ UNVERIFIED |
| WRWest Ready-mix, Plant 2, Loxley Plant | Loxley | AL | — | ◇ UNVERIFIED |
