| WPWaxahachie Plant | Waxahachie | TX | 100–499 | ◐ LIKELY ACTIVE |
| WCWebb Concrete - Oxford | Oxford | AL | — | ◐ LIKELY ACTIVE |
| WCWebber Cbp and Office Complex | Houston | TX | — | ◐ LIKELY ACTIVE |
| WCWekiwa Concrete Products | Zellwood | FL | — | ◐ LIKELY ACTIVE |
| WCWells Concrete Products Company - Grand Forks | Grand Forks | ND | 1–19 | ◐ LIKELY ACTIVE |
| WCWells Concrete Products - Maple Grove | Maple Grove | MN | 20–99 | ◐ LIKELY ACTIVE |
| WWWells & Wells Septic Tank Mfg and Pipe Sales | Anniston | AL | — | ◐ LIKELY ACTIVE |
| WBWest Broadway Ready Mix Plant | Phoenix | AZ | 1–19 | ◐ LIKELY ACTIVE |
| WCWest Carrollton Plant 164 | West Carrollton | OH | 20–99 | ◐ LIKELY ACTIVE |
| WSWestern Slope Aggregate | Carbondale | CO | — | ◐ LIKELY ACTIVE |
| WRWestlake Royal Roofing - Denver, Co | Henderson | CO | 1–19 | ◐ LIKELY ACTIVE |
| WPWestover Plant | Westover | AL | — | ◐ LIKELY ACTIVE |
| WRWhistle Redi Mix INC | Holden | MO | — | ◐ LIKELY ACTIVE |
| WRWhistle Redi-mix (water) | La Cygne | KS | — | ◐ LIKELY ACTIVE |
| WRWhite River Materials - Mtn Home | Mountain Home | AR | — | ◐ LIKELY ACTIVE |
| WBWhiteville Building Supplies Incorporated | Whiteville | NC | — | ◐ LIKELY ACTIVE |
| WBWhitewater Building Materials - 940 S 10 | Grand Junction | CO | — | ◐ LIKELY ACTIVE |
Wieser Concrete Products | Roxana | IL | 20–99 | ◐ LIKELY ACTIVE |
Wieser Concrete Products, INC. | Portage | WI | 20–99 | ◐ LIKELY ACTIVE |
| WFWilbert Funeral Services Parsons | Parsons | KS | 20–99 | ◐ LIKELY ACTIVE |
| WBWILLE BROTHERS COMPANY- Oak Forest Ready Mix Plant | Oak Forest | IL | 20–99 | ◐ LIKELY ACTIVE |
| WBWILLE BROTHERS COMPANY- Sauk Village Ready Mix Plant | Sauk Village | IL | 1–19 | ◐ LIKELY ACTIVE |
| WNWilliam N. Lamarre Concrete Products, INC. | Greenville | NH | 20–99 | ◐ LIKELY ACTIVE |
| WCWilliamson CO Ready Mix Concrete CO | Nashville | TN | — | ◐ LIKELY ACTIVE |
| WMWill Madden | De Queen | AR | — | ◐ LIKELY ACTIVE |
| WRWillmar Ready Mix | Willmar | MN | 1–19 | ◐ LIKELY ACTIVE |
| WBWillocks Brothers CO INC. | Maryville | TN | — | ◐ LIKELY ACTIVE |
| WWilson | Wilson | NC | 20–99 | ◐ LIKELY ACTIVE |
| WMWjv Materials | Pedricktown | NJ | — | ◐ LIKELY ACTIVE |
| WRWrights Ready Mix | Amelia Court House | VA | — | ◐ LIKELY ACTIVE |
| WMW.r Meadows of Texas | Fort Worth | TX | 20–99 | ◐ LIKELY ACTIVE |
| YMYager Materials INC | Hawesville | KY | — | ◐ LIKELY ACTIVE |
| YBYavapai Block and Precast, Co., INC. | Prescott | AZ | — | ◐ LIKELY ACTIVE |
| YBYellow Banks River Terminal LLC | Owensboro | KY | — | ◐ LIKELY ACTIVE |
| YJYellow Jacket Ready Mix | Houston | TX | — | ◐ LIKELY ACTIVE |
| YBYork Building Products CO Inc/new Holland | New Holland | PA | — | ◐ LIKELY ACTIVE |
| ZRZamcrete Ready-mix | Houston | TX | — | ◐ LIKELY ACTIVE |
| ABA-1 Block Corporation | Wildwood | FL | — | ◐ LIKELY ACTIVE |
| ABA-1 Block- Taft Ready Mix Fka Triple L Concrete Products | Orlando | FL | — | ◐ LIKELY ACTIVE |
| ABAcme Block and Concrete Co., INC. | Crossville | TN | — | ◐ LIKELY ACTIVE |
| ASAction Supply INC | Seaville | NJ | — | ◐ LIKELY ACTIVE |
| ACAdonel Concrete - Fort Pierce Plant | Fort Pierce | FL | — | ◐ LIKELY ACTIVE |
| ACAdonel Concrete - Loxahatchee (palm Beach Agg. Site) | Loxahatchee | FL | — | ◐ LIKELY ACTIVE |
| ACAdonel Concrete - West Palm Beach | West Palm Beach | FL | — | ◐ LIKELY ACTIVE |
| ARAdvance Ready Mix Plant #1 & #2 | Louisville | KY | — | ◐ LIKELY ACTIVE |
| AIAggregate Industries-aggregate Division | Hyattsville | MD | — | ◐ LIKELY ACTIVE |
| APAlabama Power Company Logan Martin Fleet Garage | Vincent | AL | — | ◐ LIKELY ACTIVE |
| ARAlliance Ready Mix | Arroyo Grande | CA | — | ◐ LIKELY ACTIVE |
| ACAllied Concrete Company - Ruckersville | Ruckersville | VA | — | ◐ LIKELY ACTIVE |
| ACAllied Concrete Products LLC - Kingland Reach | Richmond | VA | — | ◐ LIKELY ACTIVE |