| BBBest Block - Springdale, Ar Plant | Springdale | AR | — | ◇ UNVERIFIED |
| BBBest Block - Springfield, Mo Plant | Springfield | MO | — | ◇ UNVERIFIED |
| BBBest Block - Tallahassee Block Plant | Tallahassee | FL | — | ◇ UNVERIFIED |
| BBBest Block - Tucson, Az Plant | Tucson | AZ | — | ◇ UNVERIFIED |
| BBBest Block - Tulsa Plant | Tulsa | OK | — | ◇ UNVERIFIED |
| BBBest Block - University Block Plant | Jacksonville | FL | — | ◇ UNVERIFIED |
| BRBig Rock Building Products | Rockwood | TN | — | ◇ UNVERIFIED |
| BUBlock USA Alabama Florence Plant | Florence | AL | — | ◇ UNVERIFIED |
| BUBlock USA Theodore | Theodore | AL | — | ◇ UNVERIFIED |
| BBBoral Best Block North Plant | Littleton | CO | — | ◇ UNVERIFIED |
| BRBoral Roofing | French Camp | CA | — | ◇ UNVERIFIED |
| BRBoral Roofing LLC | Henderson | NV | — | ◇ UNVERIFIED |
| BRBoral Roofing LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| BBBradenton Block 9th St | Bradenton | FL | — | ◇ UNVERIFIED |
| CGCalstone Gilroy-oldcastle Apg | Gilroy | CA | — | ◇ UNVERIFIED |
| CSCarolina Steel Corporation | Colfax | NC | — | ◇ UNVERIFIED |
| CCCarson City Block Plant | Carson City | NV | — | ◇ UNVERIFIED |
| CCCayuga Concrete Pipe | Croydon | PA | — | ◇ UNVERIFIED |
| CRCemex Riviera Beach | Riviera Beach | FL | — | ◇ UNVERIFIED |
| CPCentral Pre Mix Concrete Products | Kent | WA | — | ◇ UNVERIFIED |
| CACoastal an Oldcastle CO | Fort Pierce | FL | — | ◇ UNVERIFIED |
| CACoastal an Oldcastle CO | Jacksonville | FL | — | ◇ UNVERIFIED |
| CPConcrete Pipe & Precast LLC | Summerville | SC | — | ◇ UNVERIFIED |
| CACrh Americas, INC | Gulfport | MS | — | ◇ UNVERIFIED |
| CBCustom Building Products | N Las Vegas | NV | — | ◇ UNVERIFIED |
| CBCustom Building Products | Grand Prairie | TX | — | ◇ UNVERIFIED |
| DSDefuniak Springs Block USA | Defuniak Springs | FL | — | ◇ UNVERIFIED |
| DLDutchland LLC | Christiana | PA | — | ◇ UNVERIFIED |
| ESEldorado Stone - Greencastle (antrim Commons) | Greencastle | PA | — | ◇ UNVERIFIED |
| EBEldridge Bag Plant | Eldridge | IA | — | ◇ UNVERIFIED |
| EREntegra Roof Tile CORP | Okeechobee | FL | — | ◇ UNVERIFIED |
| EHEp Henry | Parker Ford | PA | — | ◇ UNVERIFIED |
| EHEp Henry | Fort Dix | NJ | — | ◇ UNVERIFIED |
| EHEp Henry CORP Woodbury Plant | Woodbury | NJ | — | ◇ UNVERIFIED |
 Five Star Products, INC. | New Orleans | LA | — | ◇ UNVERIFIED |
| FRFlorida Rock 50th Street Ready Mix Plant | Tampa | FL | — | ◇ UNVERIFIED |
| FRFlorida Rock Alico Road Block Plant | Fort Myers | FL | — | ◇ UNVERIFIED |
| FCForterra Concrete Operations | Lubbock | TX | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Billings | Billings | MT | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Cedar Rapids | Cedar Rapids | IA | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Des Moines | Des Moines | IA | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Helena | Helena | MT | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Humboldt | Humboldt | IA | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Iowa Falls | Iowa Falls | IA | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Menoken | Menoken | ND | — | ◇ UNVERIFIED |
| FCForterra Concrete Products - Rapid City | Rapid City | SD | — | ◇ UNVERIFIED |
| FPForterra Pipe & Precast-bonner Springs | Shawnee | KS | — | ◇ UNVERIFIED |
| FPForterra Pipe & Precast - Independence | Independence | MO | — | ◇ UNVERIFIED |
| FPForterra Pipe & Precast, LLC - Macedonia Facility | Macedonia | OH | — | ◇ UNVERIFIED |
| FPForterra Pipe & Precast - Riverside | Romoland | CA | — | ◇ UNVERIFIED |
