| BBBuilding Blocks, INC | Kissimmee | FL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| BDBulk Dried Materials Llc/hartley St Plt | York | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| BDBulk Dried Materials Llc/workrite Masonry Plt | Thomasville | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CCCalstone Company | San Martin | CA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CBCantelli Block & Brick | Huron | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CCCapitol Concrete Products | Topeka | KS | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CICement Industries INC | Fort Myers | FL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CCCemex Construction Materials Atlantic L | Hendersonville | NC | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CTCemex-franklin-little Tennesse | Otto | NC | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CCChesapeake City of - Public Works | Chesapeake | VA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CBClayton Block CO | Wall | NJ | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CBClinton Block and Supply | Clinton | NJ | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CACoastal an Oldcastle CO Defuniak Springs Block | Defuniak Springs | FL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CICochran Industries - Wytheville | Max Meadows | VA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CBColonie Block Manufacturing | Albany | NY | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CSConcrete Supply Company, LLC - Albemarle | Albemarle | NC | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CWConcrete Works of Colorado - Port Plant | Lafayette | CO | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CVConn Valley Block CO | W Springfield | MA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CCConsumers Concrete-kalamazoo | Kalamazoo | MI | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
 Contech Engineered Solutions LLC | Fort Pierce | FL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CSCoreslab Structures (miami)inc | Miami | FL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CCCornick Concrete Products CO | Pekin | IL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CCCotter Corp-cancelled 12/05/01 | Canon City | CO | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| DSDakota Steel & Supply | Rapid City | SD | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| DPDavids Patio | Springtown | TX | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DBDebary Block | Casselberry | FL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| DNDel Norte Masonry | El Paso | TX | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| DRDial Realty (dial Block) | Tuckahoe | NJ | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| DPDukane Precast CO | Naperville | IL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| DBDz Block Plant | The Villages | FL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| ECEastern Concrete Materials INC | Glen Gardner | NJ | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| EIEastern Illinois Precast,inc. | Charleston | IL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| ETEastern Tank & Utility Services INC | Bluefield | WV | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| EBElston Block Plant | Chicago | IL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| EIEmpire Incorporated - Block Division | Newport News | VA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| FPFirebaugh Precast, INC. | Colorado Springs | CO | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| FPFirerock Products, LLC | Fairfield | AL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| FBFlemington Block & Supply CO | Raritan Twp | NJ | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| FRForterra Roof Tile INC | Fort Myers | FL | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GPGagne Precast Concrete Products, INC. | Veazie | ME | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| GGGlen Gery CORP Landmark Stone Products LLC | Cynthiana | KY | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| GLGreat Lakes an Oldcastle Company | Sheffield | OH | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
 Great Lakes Concrete Products LLC | Hamburg | NY | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GLGreat Lakes Minerals LLC | Wurtland | KY | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| GCGrinnell Concrete Pavingstones, INC. | Sparta | NJ | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| HPHanson Paver Products INC | Pompano Beach | FL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| HPHanson Pipe & Precast INC Hanover Block Plant | Ashland | VA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| HPHanson Pipe & Precast INC Petersburg Block Plant | Prince George | VA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| HRHolbrook Ready Mix INC. | Selma | AL | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| HRHoover Ready Mix | Madison | TN | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
