| MPMonarch Products INC | York Haven | PA | 20–99 | ◐ LIKELY ACTIVE |
| MEMPC Enterprises Inc | Mount Pleasant | IA | 100–499 | ◐ LIKELY ACTIVE |
| NWNashville Wilbert Burial Vault CO. | Nashville | TN | 1–19 | ◐ LIKELY ACTIVE |
Nichiha Usa, INC. | Macon | GA | 500+ | ◐ LIKELY ACTIVE |
| NCNorthern Concrete Pipe-bay City | Bay City | MI | 100–499 | ◐ LIKELY ACTIVE |
| OBOldcastle Building Envelope | Fremont | CA | 100–499 | ◐ LIKELY ACTIVE |
| PBPeerless Block & Brick Company | Saint Albans | WV | 20–99 | ◐ LIKELY ACTIVE |
| PBPermabase Building Products, LLC | Clinton | IN | 20–99 | ◐ LIKELY ACTIVE |
| PIPermacast, INC. | Bradenton | FL | 1–19 | ◐ LIKELY ACTIVE |
| PCPermatile Concrete Products Company INC | Bristol | VA | 20–99 | ◐ LIKELY ACTIVE |
| PPPhoenix Precast Products | Concord | NH | 20–99 | ◐ LIKELY ACTIVE |
| PCPrecast Concrete LLC | Fife | WA | 20–99 | ◐ LIKELY ACTIVE |
| PTPrecast Terrazzo Enterprises INC | Raleigh | NC | 20–99 | ◐ LIKELY ACTIVE |
| PCPrestressed Concrete Construction, LLC | Newton | KS | 20–99 | ◐ LIKELY ACTIVE |
| PSPrestress Services Industries Decatur | Decatur | IN | 20–99 | ◐ LIKELY ACTIVE |
| RORail One USA CORP | Clinton | IA | 1–19 | ◐ LIKELY ACTIVE |
| RCRocla Concrete Tie Inc-Pueblo | Pueblo | CO | 20–99 | ◐ LIKELY ACTIVE |
| RSRoyal Stone LLC | Williamston | MI | 20–99 | ◐ LIKELY ACTIVE |
| SCScranton Craftsmen Incorporated | Throop | PA | 20–99 | ◐ LIKELY ACTIVE |
| SQSFO Quikrete | Fremont | CA | 20–99 | ◐ LIKELY ACTIVE |
| SQSGF Quikrete | Springfield | MO | 1–19 | ◐ LIKELY ACTIVE |
| SCShope Concrete LLC | Puyallup | WA | — | ◐ LIKELY ACTIVE |
| SMSJB Masonry - Precast | Willmar | MN | 1–19 | ◐ LIKELY ACTIVE |
Smith-Midland Corporation (South Carolina) | Hopkins | SC | 20–99 | ◐ LIKELY ACTIVE |
| SCStabil Concrete Products, LLC | Sarasota | FL | — | ◐ LIKELY ACTIVE |
| SCStandard Concrete Products | Savannah | GA | 100–499 | ◐ LIKELY ACTIVE |
| SCStandard Concrete Products - Tampa | Tampa | FL | 20–99 | ◐ LIKELY ACTIVE |
| SPSteps Plus, INC. | Syracuse | NY | 1–19 | ◐ LIKELY ACTIVE |
| SCStresscon CORP | Colorado Springs | CO | 100–499 | ◐ LIKELY ACTIVE |
| SSSunset Stone | Castle Rock | CO | 20–99 | ◐ LIKELY ACTIVE |
| SCSuperior Concrete | Auburn | ME | 20–99 | ◐ LIKELY ACTIVE |
| TVTerra Vaults | Gainesville | TX | 20–99 | ◐ LIKELY ACTIVE |
| TBThe Bauer Company INC. | Worthington | PA | 20–99 | ◐ LIKELY ACTIVE |
| TSThe Strong Company, INC. | Pine Bluff | AR | 20–99 | ◐ LIKELY ACTIVE |
| TCTindall Corporation - Georgia Division | Conley | GA | 100–499 | ◐ LIKELY ACTIVE |
| TCTindall Corporation - Virginia Division | Petersburg | VA | 100–499 | ◐ LIKELY ACTIVE |
| TRTransco Ready Mix - Spring | Spring | TX | 20–99 | ◐ LIKELY ACTIVE |
| TWTupelo Wilbert Burial Vault | Verona | MS | 1–19 | ◐ LIKELY ACTIVE |
| UCUnited Concrete Products, INC | Yalesville | CT | 100–499 | ◐ LIKELY ACTIVE |
| UMUnited Memorial Products, Whittier | Whittier | CA | 20–99 | ◐ LIKELY ACTIVE |
| UCUniversal Concrete Prod Corp/stowe | Stowe | PA | 100–499 | ◐ LIKELY ACTIVE |
| UCUtility Concrete Products | Morris | IL | 100–499 | ◐ LIKELY ACTIVE |
| UPUtility Precast, INC. | Concord | NC | 20–99 | ◐ LIKELY ACTIVE |
| VIVfp INC | Duffield | VA | 100–499 | ◐ LIKELY ACTIVE |
| WFWaco Facility | Waco | TX | 100–499 | ◐ LIKELY ACTIVE |
| WTWausau Tile, Inc. - WI | Rothschild | WI | 100–499 | ◐ 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 |
| WRWestlake Royal Roofing - Denver, Co | Henderson | CO | 1–19 | ◐ 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 |
| WNWilliam N. Lamarre Concrete Products, INC. | Greenville | NH | 20–99 | ◐ LIKELY ACTIVE |
| WMW.r Meadows of Texas | Fort Worth | TX | 20–99 | ◐ LIKELY ACTIVE |
| ARAdams Ridgeway | Ridgeway | SC | — | ◇ UNVERIFIED |
| APAds Pipe Dba Frederick Precast | Greencastle | PA | — | ◇ UNVERIFIED |
| ASAlamo San Antonio Cement Plant | San Antonio | TX | — | ◇ UNVERIFIED |
| AAAmerimix a Div of Bonsal American | Auburndale | FL | — | ◇ UNVERIFIED |
Amrize Cement INC Holly Hill Plant | Holly Hill | SC | — | ◇ UNVERIFIED |
Amrize Cement Inc/whitehall Plt | Whitehall | PA | — | ◇ UNVERIFIED |
| AHAmrize Hagerstown Cement Plant (formerly Holcim Ha | Hagerstown | MD | — | ◇ UNVERIFIED |
| ACArgos Cement LLC | Newberry | FL | — | ◇ UNVERIFIED |
| ACArgos Cement, LLC | Atlanta | GA | — | ◇ UNVERIFIED |
| ACArgos Cement LLC - Roberta Plant | Calera | AL | — | ◇ UNVERIFIED |
| ASArgos San Juan (fka Essroc) | Dorado | PR | — | ◇ UNVERIFIED |
| AUArgos USA | Orlando | FL | — | ◇ UNVERIFIED |
| AUArgos USA - Martinsburg | Martinsburg | WV | — | ◇ UNVERIFIED |
| ACArmstrong Cement & Supply - Winfield | Cabot | PA | — | ◇ UNVERIFIED |
| AGAsh Grove Cement Co-chanute Plant | Chanute | KS | — | ◇ UNVERIFIED |
| AGAsh Grove Cement CO - Louisville Facility | Louisville | NE | — | ◇ UNVERIFIED |
| AGAsh Grove Cement CO - Montana City Plant | Clancy | MT | — | ◇ UNVERIFIED |
| AGAsh Grove Cement Company | Huntington | OR | — | ◇ UNVERIFIED |
| AGAsh Grove Cement- Leamington Utah | Nephi | UT | — | ◇ UNVERIFIED |
| AGAsh Grove Texas LP | Midlothian | TX | — | ◇ UNVERIFIED |
| ARAssociated Ready Mix Concrete | Oxnard | CA | — | ◇ UNVERIFIED |
| ARAssociated Ready Mixed Concrete | San Diego | CA | — | ◇ UNVERIFIED |
| BRBoral Roofing | French Camp | CA | — | ◇ UNVERIFIED |
| BRBoral Roofing LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| BRBoral Roofing LLC | Henderson | NV | — | ◇ UNVERIFIED |
| BUBuzzi Unicem USA Cape Girardeau | Cape Girardeau | MO | — | ◇ UNVERIFIED |
| CPCal Portland Cement | Oro Grande | CA | — | ◇ UNVERIFIED |
| CCCalportland Cement Plant | Redding | CA | — | ◇ UNVERIFIED |
| CPCa Portland Cement CO | Mojave | CA | — | ◇ UNVERIFIED |
| CPCatalina Pacific Concrete CO El Segundo Plant | El Segundo | CA | — | ◇ UNVERIFIED |
| CCCayuga Concrete Pipe | Croydon | PA | — | ◇ UNVERIFIED |
| CCCemex Construction Materials Atlantic LLC | Knoxville | TN | — | ◇ UNVERIFIED |
| CCCemex Construction Materials Florida,llc | Brooksville | FL | — | ◇ UNVERIFIED |
| CCCemex Construction Materials Pacific Llc- Cemex Victorville -river Plant | Victorville | CA | — | ◇ UNVERIFIED |
| CCCemex Construction Materials South LLC | Lyons | CO | — | ◇ UNVERIFIED |
| CCCemex Construction Materials South, LLC | New Braunfels | TX | — | ◇ UNVERIFIED |
| CECemex El Paso Section 10 | El Paso | TX | — | ◇ UNVERIFIED |
| CSCemex Southeast Llc-2720 Hwy 341-bk of Main Office Plant #1 | Clinchfield | GA | — | ◇ UNVERIFIED |
| CPCentral Plains Cement Company | Tulsa | OK | — | ◇ UNVERIFIED |
| CPCentral Pre Mix Concrete Products | Kent | WA | — | ◇ UNVERIFIED |
| CCContinental Cement Company, LLC | Hannibal | MO | — | ◇ UNVERIFIED |
| CBCustom Building Products | N Las Vegas | NV | — | ◇ UNVERIFIED |
| CBCustom Building Products | Grand Prairie | TX | — | ◇ UNVERIFIED |
| DPDragon Products CO - Thomaston | Thomaston | ME | — | ◇ UNVERIFIED |
| DCDrake Cement- Drake Road Site | Paulden | AZ | — | ◇ UNVERIFIED |
| DLDucommun Labarge Electronics | Huntsville | AR | — | ◇ UNVERIFIED |