| WHWellington Hamrick Precast, INC. | Boiling Springs | NC | — | ◇ UNVERIFIED |
| WDWells Denver Precast | Brighton | CO | — | ◇ UNVERIFIED |
| WGWells Group LLC the | Jenkins | KY | — | ◇ UNVERIFIED |
| WRWells Ready Mix | Wells | MN | — | ◇ UNVERIFIED |
| WRWelsch Ready Mix | Bolingbrook | IL | — | ◇ UNVERIFIED |
| WRWelsch Ready Mix Plant | Chicago | IL | — | ◇ UNVERIFIED |
| WCWest Continental Auto Parts Company | Maryland Heights | MO | — | ◇ UNVERIFIED |
| WMWestern Mobile Denver INC | Golden | CO | — | ◇ UNVERIFIED |
| WMWestern Mobile Northern Bayfield Pit | Walden 18.5 Mi. Se of | CO | — | ◇ UNVERIFIED |
| WRWestfield Ready Mix INC | Westfield | MA | — | ◇ UNVERIFIED |
| WAWestgate Ave | Dickinson | ND | — | ◇ UNVERIFIED |
| WMWest Monroe Ready Mix | West Monroe | LA | — | ◇ UNVERIFIED |
| WQWest Quarry | Vinton | TX | — | ◇ UNVERIFIED |
| WRWest Ranch Aggregate - Port Generator | Rocky Ford Area | CO | — | ◇ UNVERIFIED |
| WRWest Ready Mix, INC. | Helenwood | TN | — | ◇ UNVERIFIED |
| WRWest Ready-mix, Plant 1 | Eight Mile | AL | — | ◇ UNVERIFIED |
| WRWest Ready-mix, Plant 2, Loxley Plant | Loxley | AL | — | ◇ UNVERIFIED |
| WTWest Tennessee Ready Mix, LLC - Piperton Plant | Piperton | TN | — | ◇ UNVERIFIED |
| WPWetumpka Plant | Wetumpka | AL | — | ◇ UNVERIFIED |
| WFW Fort Worth Plant | Aledo | TX | — | ◇ UNVERIFIED |
| WCWheatland Concrete | Gervais | OR | — | ◇ UNVERIFIED |
| WCWhite Cement Specialties | Venice | FL | — | ◇ UNVERIFIED |
| WRWhite River Materials - Flippin | Flippin | AR | — | ◇ UNVERIFIED |
| WRWhite River Sand & Gravel-meeker Pit | Meeker | CO | — | ◇ UNVERIFIED |
| WCWicomico County Airport | Salisbury | MD | — | ◇ UNVERIFIED |
| WCWiggins Concrete:hampton | Hampton | SC | — | ◇ UNVERIFIED |
| WRWildcatter Redi-mix Paisano | Fort Worth | TX | — | ◇ UNVERIFIED |
| WGWillamette Graystone | Wood Village | OR | — | ◇ UNVERIFIED |
| WGWillamette Graystone - Eugene, Or Block Plant | Eugene | OR | — | ◇ UNVERIFIED |
| WGWillamette Graystone - Wood Village, Or Paver Plan | Troutdale | OR | — | ◇ UNVERIFIED |
| WTWillbee Transit Mix | Jackson | MI | — | ◇ UNVERIFIED |
| WIWillcan, INC. Dba Basic Ready Mix-calhoun | Calhoun | GA | — | ◇ UNVERIFIED |
| W2Williams 24-1 Production Facility | Dequincy | LA | — | ◇ UNVERIFIED |
| WSWilliamson & Sons Marine Construction INC | Cape Coral | FL | — | ◇ UNVERIFIED |
| WPWillow Park | Aledo | TX | — | ◇ UNVERIFIED |
| WCWilson Concrete Products LLC | Webb City | MO | — | ◇ UNVERIFIED |
| WBWinder Block | Winder | GA | — | ◇ UNVERIFIED |
| WCWindsor Concrete Co-windsor Concrete CO | Windsor | MO | — | ◇ UNVERIFIED |
| WRWingra Redi-mix INC Plant 1&2 | Fitchburg | WI | — | ◇ UNVERIFIED |
| WBWiregrass Block & Precast | Newton | AL | — | ◇ UNVERIFIED |
| WBWl Byrne INC | Middleborough | MA | — | ◇ UNVERIFIED |
| WCWolyniec Const INC Stormwater | Williamsport | PA | — | ◇ UNVERIFIED |
| WWWoodard Walker Ptr 1-a & L&l 1-a Tank Battery - W Bryceland Field | Taylor | LA | — | ◇ UNVERIFIED |
| WPWoodland Plant | Woodland | CA | — | ◇ UNVERIFIED |
| WSWoodruff Supply CO INC | Madisonville | KY | — | ◇ UNVERIFIED |
| WRWoodway Ready Mix | Woodway | TX | — | ◇ UNVERIFIED |
| WRWray Readi Mix INC. | Wray | CO | — | ◇ UNVERIFIED |
| WCWright Concrete Recycling INC | Markham | IL | — | ◇ UNVERIFIED |
| YAYamada and Sons | Hilo | HI | — | ◇ UNVERIFIED |
| YCYates Construction Concrete Plant | Calion | AR | — | ◇ UNVERIFIED |
