| CUConcrete Unit Step CO INC | Collinsville | IL | — | ◇ UNVERIFIED |
| CBConecuh Bridge and Engineering, INC. | Troy | AL | — | ◇ UNVERIFIED |
| CCCon-fab California LLC - Shafter Plant | Shafter | CA | — | ◇ UNVERIFIED |
| CMCongress Materials | Euless | TX | — | ◇ UNVERIFIED |
| CGConmat Group INC | Harrisonburg | VA | — | ◇ UNVERIFIED |
| CVConn Valley Block CO | W Springfield | MA | — | ◇ UNVERIFIED |
| CConrock | Roanoke | VA | — | ◇ UNVERIFIED |
| CPConstruction Products, LLC of Tennessee | Jackson | TN | — | ◇ UNVERIFIED |
| CSConstruction Specialty Service, INC Dba Css INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| CCConsumers Concrete Corporation | Kalamazoo | MI | — | ◇ UNVERIFIED |
| CCConsumers Concrete-kalamazoo | Kalamazoo | MI | — | ◇ UNVERIFIED |
 Contech Engineered Solutions LLC | Fort Pierce | FL | — | ◇ UNVERIFIED |
| CCContinental Cast Stone East By Russell, INC. | West Berlin | NJ | — | ◇ UNVERIFIED |
| CCContinental Cast Stone, LLC | Shawnee | KS | — | ◇ UNVERIFIED |
| CCContinntal Cast Stone of Texas | Grand Prairie | TX | — | ◇ UNVERIFIED |
| CPContractors Precast CORP. | Davidsonville | MD | — | ◇ UNVERIFIED |
| CBConway Block Co., INC. | Conway | AR | — | ◇ UNVERIFIED |
| CWCooper Wilbert Vault CO | Barrington | NJ | — | ◇ UNVERIFIED |
| CCCopperfield Chimney Supply CORP | Swedesboro | NJ | — | ◇ UNVERIFIED |
| CRCoral Reef Cast Stone | Manalapan | FL | — | ◇ UNVERIFIED |
| CVCordeiro Vault CO INC | Elk Grove | CA | — | ◇ UNVERIFIED |
| CSCoreslab Structures (ariz) INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| CSCoreslab Structures (atlanta) INC. | Duluth | GA | — | ◇ UNVERIFIED |
| CSCoreslab Structures Indianapolis Incorporated | Indianapolis | IN | — | ◇ UNVERIFIED |
| CSCoreslab Structures (miami) INC. | Doral | FL | — | ◇ UNVERIFIED |
| CSCoreslab Structures (miami)inc | Miami | FL | — | ◇ UNVERIFIED |
| CSCoreslab Structures Omaha INC | La Platte | NE | — | ◇ UNVERIFIED |
| CCCornerstone Concrete Services LLC | Boise | ID | — | ◇ UNVERIFIED |
| CCCornick Concrete Products CO | Pekin | IL | — | ◇ UNVERIFIED |
| CSCoronado Stone Products | Westfield | NY | — | ◇ UNVERIFIED |
| CBCorotherm Building Systems, INC | Guntersville | AL | — | ◇ UNVERIFIED |
| CCCotter Corp-cancelled 12/05/01 | Canon City | CO | — | ◇ UNVERIFIED |
| CMCounty Materials | Janesville | WI | — | ◇ UNVERIFIED |
| CMCounty Materials CORP | Elderon | WI | — | ◇ UNVERIFIED |
| CMCounty Materials CORP | Eau Claire | WI | — | ◇ UNVERIFIED |
| CMCounty Materials CORP | Charleston | IL | — | ◇ UNVERIFIED |
| CMCounty Materials Corp/ocala Rmp | Ocala | FL | — | ◇ UNVERIFIED |
| CMCounty Materials Laydown Yard Expansion | Maxwell | IN | — | ◇ UNVERIFIED |
| CBCovered Bridge Precast | Ephrata | PA | — | ◇ UNVERIFIED |
| CCCraft Concrete Products INC | Cary | IL | — | ◇ UNVERIFIED |
| CMCreative Mines LLC | Malad City | ID | — | ◇ UNVERIFIED |
| CSCreative Stone Mfg, Coronado Stone Prod | Perris | CA | — | ◇ UNVERIFIED |
| CSCreative Stone Mfg,. INC. | Fontana | CA | — | ◇ UNVERIFIED |
| CSCreative Stone Mfg, INC Dba Coronado Stone Products | Fontana | CA | — | ◇ UNVERIFIED |
| CGCreek Government Services, INC. | Byhalia | MS | — | ◇ UNVERIFIED |
| CBCrego Block, Albuquerque Block Plant | Albuquerque | NM | — | ◇ UNVERIFIED |
| CCCrescent Coal CO | East Mcdowell | KY | — | ◇ UNVERIFIED |
| CPCrest Precast INC | La Crescent | MN | — | ◇ UNVERIFIED |
| CLCrom, LLC | Gainesville | FL | — | ◇ UNVERIFIED |
| CVCR Vernier, LLC | Belleville | IL | — | ◇ UNVERIFIED |
| CIC.s.c.s. INC. | Dallas | TX | — | ◇ UNVERIFIED |
| CPCst Products CORP | Pedricktown | NJ | — | ◇ UNVERIFIED |
| CSC. Stuart Cast Stone, LTD. | San Antonio | TX | — | ◇ UNVERIFIED |
| CPCtu Precast | Marysville | CA | — | ◇ UNVERIFIED |
| CCCustom Concrete Homes | Resaca | GA | — | ◇ UNVERIFIED |
| CICustomcrete, Inc | Saint Louis | MO | — | ◇ UNVERIFIED |
| CPCustom Precast Products | Lumberton | MS | — | ◇ UNVERIFIED |
| CMCw Mcgrath INC | El Cajon | CA | — | ◇ UNVERIFIED |
| CICxt Incorporated - Vanhooseco Lebanon | Lebanon | TN | — | ◇ UNVERIFIED |
| COCydi - Ocala Terminal | Ocala | FL | — | ◇ UNVERIFIED |
| CYC Yelvington Dist Co/preferred Mtls INC | Bonita Springs | FL | — | ◇ UNVERIFIED |
| DHD3 Holdings LLC | Whitestown | IN | — | ◇ UNVERIFIED |
| DAD a Distribution Dba Boulder Creek Stone Products | Fridley | MN | — | ◇ UNVERIFIED |
| DAD a Distribution INC Dba Condor Fireplace - Stone | Minneapolis | MN | — | ◇ UNVERIFIED |
| DCDallas Cast Stone Ii CORP | Dallas | TX | — | ◇ UNVERIFIED |
| DAD and R Concrete Construction L.L.C. | Williston | ND | — | ◇ UNVERIFIED |
| DJDaryl J. Buck | Fontana | CA | — | ◇ UNVERIFIED |
| DWDavid Williams | Pompano Beach | FL | — | ◇ UNVERIFIED |
| DVDavis Vault CO. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| DODawkins On-site LLC | Gregory | TX | — | ◇ UNVERIFIED |
| DEDawn Enterprises, LLC | Manchester | CT | — | ◇ UNVERIFIED |
| DCDba Cornick Concrete Products | Pekin | IL | — | ◇ UNVERIFIED |
| DPDbs Prestress | Dayton | OH | — | ◇ UNVERIFIED |
| DBDeam-ron Building Systems LLC | Lodiburg | KY | — | ◇ UNVERIFIED |
| DCDean Column Incorporated | Fitchburg | MA | — | ◇ UNVERIFIED |
| DBDebary Block | Casselberry | FL | — | ◇ UNVERIFIED |
| DCDecatur Concrete Recycling CO | Decatur | IL | — | ◇ UNVERIFIED |
| DPDecor Precast of Michigan | Holt | MI | — | ◇ UNVERIFIED |
| DHDectile Harkus Construction | Butler | PA | — | ◇ UNVERIFIED |
| DDDegeorge Driveways | Largo | FL | — | ◇ UNVERIFIED |
| DVDeihl Vault & Precast, INC. | Orangeville | PA | — | ◇ UNVERIFIED |
| DCDelgado Concrete Products | San Antonio | TX | — | ◇ UNVERIFIED |
| DSDelgreco Supply CO INC | Northborough | MA | — | ◇ UNVERIFIED |
| DMDel Monaco Brothers Industries | Sands Point | NY | — | ◇ UNVERIFIED |
| DRDennis R. Maxwell | Auburndale | FL | — | ◇ UNVERIFIED |
| DBDependable Bagging Co., INC. | Harahan | LA | — | ◇ UNVERIFIED |
| DBDependable Bagging Company, Inc/louisiana Blending | New Orleans | LA | — | ◇ UNVERIFIED |
| DBDesert Block Company INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| DCDesert Concrete, LLC | North Las Vegas | NV | — | ◇ UNVERIFIED |
| DPDesign Precast & Pipe, INC. | Arnaudville | LA | — | ◇ UNVERIFIED |
| DPDetroit Precast, LLC | Detroit | MI | — | ◇ UNVERIFIED |
| DCDfw Cast Stone | Royse City | TX | — | ◇ UNVERIFIED |
| DCDiaz Construction | Bogart | GA | — | ◇ UNVERIFIED |
| DCDicicco Concrete Products CO | Chicago Heights | IL | — | ◇ UNVERIFIED |
| DCDick Casey Concrete CO | Carbondale | CO | — | ◇ UNVERIFIED |
| DIDi-ferraro, INC Dba Totowa Concrete Products | Wayne | NJ | — | ◇ UNVERIFIED |
| DSDimensional Stoneworks LLC | Overland Park | KS | — | ◇ UNVERIFIED |
| DCDiversified Concrete Cutting INC | Sacramento | CA | — | ◇ UNVERIFIED |
| DDiversitech | Columbus | TX | — | ◇ UNVERIFIED |
| DDiversitech | Leesburg | FL | — | ◇ UNVERIFIED |
