| BCBoral Concrete Products, LLC | Dallas | TX | — | ◇ UNVERIFIED |
| BRBoral Roofing LLC | Gilroy | CA | — | ◇ UNVERIFIED |
| BRBoral Roofing, LLC | Rialto | CA | — | ◇ UNVERIFIED |
| BRBoral Roofing, LLC. | Pompano Beach | FL | — | ◇ UNVERIFIED |
| BPBorgert Products | Saint Joseph | MN | — | ◇ UNVERIFIED |
| BCBosse Concrete Products | Jonesboro | GA | — | ◇ UNVERIFIED |
| BCBoston Concrete CORP | Lowell | MA | — | ◇ UNVERIFIED |
| BSBoston Sand & Gravel Company | Charlestown | MA | — | ◇ UNVERIFIED |
| BSBoston Sand & Gravel Company | Boston | MA | — | ◇ UNVERIFIED |
| BBBoxley Block, LLC | Lynchburg | VA | — | ◇ UNVERIFIED |
| BCBoxley Concrete Products | Lynchburg | VA | — | ◇ UNVERIFIED |
| BBBoykin Brothers, LLC | Baton Rouge | LA | — | ◇ UNVERIFIED |
| BBBoyle Block CO | Danville | KY | — | ◇ UNVERIFIED |
| BRBract Retaining Wall and Excavating LLC | Ashland | VA | — | ◇ UNVERIFIED |
| BIBrandenburg Industrial Service CO | Macomb | IL | — | ◇ UNVERIFIED |
| BCBrandt Construction CO | Colona | IL | — | ◇ UNVERIFIED |
| BRBrannan Ready Mix Company | Rifle | CO | — | ◇ UNVERIFIED |
| BRBrannan Ready Mix West Plant | Denver | CO | — | ◇ UNVERIFIED |
| BWBrannan West Plant | Denver | CO | — | ◇ UNVERIFIED |
| BMBreckenridge Material Co-mattis Road Plant | Saint Louis | MO | — | ◇ UNVERIFIED |
| BMBreckenridge Material Co-st Louis (plant 7) | Saint Louis | MO | — | ◇ UNVERIFIED |
| BMBreckenridge Materials-jeffco Plant | Arnold | MO | — | ◇ UNVERIFIED |
| BOBreckenridge of Il | Madison | IL | — | ◇ UNVERIFIED |
| BOBreckenridge of Illinois LLC | Alton | IL | — | ◇ UNVERIFIED |
| BOBreckenridge of Illinois LLC | Collinsville | IL | — | ◇ UNVERIFIED |
| BOBreckenridge of Illinois LLC | Columbia | IL | — | ◇ UNVERIFIED |
| BBBrenny-dahl Block CO | Cloquet | MN | — | ◇ UNVERIFIED |
| BCBrentanos Concrete Connection, INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| BSBretthauer-ramirez Staffing, INC. | Pearland | TX | — | ◇ UNVERIFIED |
| BABrick Aquisition Company, INC. | Montgomery | AL | — | ◇ UNVERIFIED |
| BIBrickcraft INC | Farmersburg | IN | — | ◇ UNVERIFIED |
| BCBristol County Pre-cast, INC. | Westport | MA | — | ◇ UNVERIFIED |
| BGBristol Group | Charlestown | IN | — | ◇ UNVERIFIED |
| BCBritton Concrete INC. | Lawrence Twp | NJ | — | ◇ UNVERIFIED |
| BBroadway | Jersey City | NJ | — | ◇ UNVERIFIED |
 Brothers Concrete Supply Plant 2 - Oneonta | Oneonta | AL | — | ◇ UNVERIFIED |
| BIBrown-wilbert INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| BIBrown-wilbert INC | Esko | MN | — | ◇ UNVERIFIED |
| BIBrown-wilbert INC | Mankato | MN | — | ◇ UNVERIFIED |
| BVBrown-wilbert Vault CO. | Milwaukee | WI | — | ◇ UNVERIFIED |
| BVBrown-wilbert Vault CO - Austin | Austin | MN | — | ◇ UNVERIFIED |
| BVBrown-wilbert Vault CO. - La Crosse | La Crosse | WI | — | ◇ UNVERIFIED |
| BVBrown-wilbert Vault CO - Lakeville | Lakeville | MN | — | ◇ UNVERIFIED |
| BVBrown-wilbert Vault CO - Mankato | Mankato | MN | — | ◇ UNVERIFIED |
| BHBrunswick Hot Mix CORP | Woodbridge Twp | NJ | — | ◇ UNVERIFIED |
| BHBryce Hill, INC | Saint Paris | OH | — | ◇ UNVERIFIED |
| BSB S & E Company | Bakersfield | CA | — | ◇ UNVERIFIED |
| BRBt Redi Mix - Dyersburg | Dyersburg | TN | — | ◇ UNVERIFIED |
| BRBt Redi Mix - Humboldt | Humboldt | TN | — | ◇ UNVERIFIED |
| BRBt Redi Mix - Jackson | Jackson | TN | — | ◇ UNVERIFIED |
| BRBt Redi Mix - Jackson, Gp Facility | Jackson | TN | — | ◇ UNVERIFIED |
| BRBt Redi Mix - Stanton | Stanton | TN | — | ◇ UNVERIFIED |
| BRBt Redi Mix - Tiptonville | Tiptonville | TN | — | ◇ UNVERIFIED |
| BSBuck Simmons Vault Service, INC | Roanoke | VA | — | ◇ UNVERIFIED |
| BCBuffalo Concrete Batch Plant | Buffalo | TX | — | ◇ UNVERIFIED |
| BCBuffalo Concrete Batch Plant | Johnson | WY | — | ◇ UNVERIFIED |
| BPBuffalo Plant 30 | Buffalo | TX | — | ◇ UNVERIFIED |
| BRBuffalo Ready Mix | Buffalo | TX | — | ◇ UNVERIFIED |
| BABuild America | Sedalia | CO | — | ◇ UNVERIFIED |
| BCBuilders Choice | Ottawa | KS | — | ◇ UNVERIFIED |
| BCBuilders Choice | Saint Joseph | MO | — | ◇ UNVERIFIED |
| BCBuilders Concrete | Clovis | CA | — | ◇ UNVERIFIED |
| BCBuilders Concrete | Sanger | CA | — | ◇ UNVERIFIED |
| BCBuilders Concrete Block CO | Richmond | KY | — | ◇ UNVERIFIED |
| BCBuilders Concrete INC. | Merced | CA | — | ◇ UNVERIFIED |
| BFBuilders Firstsource | Benson | NC | — | ◇ UNVERIFIED |
| BSBuilders Sand and Cement CO. INC. | Davenport | IA | — | ◇ UNVERIFIED |
| BSBuilders Supply Company of Cookeville | Cookeville | TN | — | ◇ UNVERIFIED |
| BBBuilding Blocks | Merritt Island | FL | — | ◇ UNVERIFIED |
| BCBullard Concrete Facility - Florala | Florala | AL | — | ◇ UNVERIFIED |
| BDBull Dog Ready Mix | Houston | TX | — | ◇ UNVERIFIED |
| BRBulldog Ready Mix, Attala Plant | Sallis | MS | — | ◇ UNVERIFIED |
| BPBullseye Products International, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| BCBurks Concrete Contractors, INC. | Santa Fe | TX | — | ◇ UNVERIFIED |
| BIBurlingame Indust. INC Dba Eagle Roofing Products | Rialto | CA | — | ◇ UNVERIFIED |
| BWBurlington Wilbert Vault Works, INC. | Burlington | IA | — | ◇ UNVERIFIED |
| BCBurnco Colorado LLC - Portable Rmx 1 | Denver | CO | — | ◇ UNVERIFIED |
| BMBurn's Monument Company | Perry | FL | — | ◇ UNVERIFIED |
| BTBurrell Tri Cnty Vaults INC | Ypsilanti | MI | — | ◇ UNVERIFIED |
| BCBush Concrete Products INC | Muskegon | MI | — | ◇ UNVERIFIED |
| BLBwb LLC Superior Onsite Plant #12 | Southfield | MI | — | ◇ UNVERIFIED |
| BSByrne Sand & Gravel, INC. | Middleboro | MA | — | ◇ UNVERIFIED |
| CFC3 Foam & Precast Inc | Orlando | FL | — | ◇ UNVERIFIED |
| CPCabot Plant 607 | Cabot | AR | — | ◇ UNVERIFIED |
| CMCadman Materials Boardman | Boardman | OR | — | ◇ UNVERIFIED |
| CRCain Ranch Quarry | Lee Vining | CA | — | ◇ UNVERIFIED |
| CCCajun Crete LLC | Minden | LA | — | ◇ UNVERIFIED |
| CRCajun Ready Mix Concrete, LLC | Livingston | LA | — | ◇ UNVERIFIED |
| CMCalaveras Materials INC | Sjvapcd | CA | — | ◇ UNVERIFIED |
| CSCalaveras Standard Materials INC. | Corona | CA | — | ◇ UNVERIFIED |
| CICaledonia INC. | Waterford | VT | — | ◇ UNVERIFIED |
| CCCaliber Cast Stone | O Fallon | MO | — | ◇ UNVERIFIED |
| CLCalifornia Landscape Supply | Ceres | CA | — | ◇ UNVERIFIED |
| CPCalifornia Portland Cement | Littlerock | CA | — | ◇ UNVERIFIED |
| CPCalifornia Portland Cement CO | Irwindale | CA | — | ◇ UNVERIFIED |
| CPCalifornia Portland Cement CO | Torrance | CA | — | ◇ UNVERIFIED |
| CPCalifornia Portland Cement - Vista Chino | Thousand Palms | CA | — | ◇ UNVERIFIED |
| CCCalmat CO | Poway | CA | — | ◇ UNVERIFIED |
| CCCalmat CO. | Fresno | CA | — | ◇ UNVERIFIED |
| CCCalmat CO. | Bakersfield | CA | — | ◇ UNVERIFIED |
