| BRBrannan Ready Mix Company | Denver | CO | — | ◇ UNVERIFIED |
| BRBrannan Ready Mix West Plant | Denver | CO | — | ◇ UNVERIFIED |
| BWBrannan West Plant | Denver | CO | — | ◇ UNVERIFIED |
| BCBreck County Ready Mix CO | Hardinsburg | KY | — | ◇ UNVERIFIED |
| BMBreckenridge Material Co-mattis Road Plant | Saint Louis | MO | — | ◇ UNVERIFIED |
| BMBreckenridge Material Company #3 | Chesterfield | MO | — | ◇ UNVERIFIED |
| BMBreckenridge Material Co-st Louis (plant 6) | 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 Il | Caseyville | IL | — | ◇ UNVERIFIED |
| BOBreckenridge of Il | Belleville | IL | — | ◇ UNVERIFIED |
| BOBreckenridge of Il | Lebanon | IL | — | ◇ UNVERIFIED |
| BOBreckenridge of Illinois LLC | Alton | IL | — | ◇ UNVERIFIED |
| BOBreckenridge of Illinois LLC | Columbia | IL | — | ◇ UNVERIFIED |
| BOBreckenridge of Illinois LLC | Hamel | IL | — | ◇ UNVERIFIED |
| BOBreckenridge of Illinois LLC | Collinsville | IL | — | ◇ UNVERIFIED |
| BPBreckenridge Plant 05 Festus | Festus | MO | — | ◇ UNVERIFIED |
| BBBrenny-dahl Block CO | Cloquet | MN | — | ◇ UNVERIFIED |
| BGBristol Group | Charlestown | IN | — | ◇ UNVERIFIED |
| BGBristol Group Precast | Lexington | KY | — | ◇ UNVERIFIED |
| BCBritton Concrete INC. | Lawrence Twp | NJ | — | ◇ UNVERIFIED |
| BBroadway | Jersey City | NJ | — | ◇ UNVERIFIED |
 Brothers Concrete Supply Plant 2 - Oneonta | Oneonta | AL | — | ◇ UNVERIFIED |
| BRBrowning Redi-mix Concrete | Beebe | AR | — | ◇ UNVERIFIED |
| BHBrunswick Hot Mix CORP | Woodbridge Twp | NJ | — | ◇ UNVERIFIED |
| BFBryan Frank, INC. | Pittsburgh | PA | — | ◇ 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, INC. | Jackson | 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 |
| BSBuddy's Sand and Gravel Plant 1 | Butler | AL | — | ◇ UNVERIFIED |
| BRBuellflat Rock Company | Solvang | CA | — | ◇ UNVERIFIED |
| BCBuffalo Concrete Batch Plant | Johnson | WY | — | ◇ UNVERIFIED |
| BCBuffalo Concrete Batch Plant | Buffalo | TX | — | ◇ UNVERIFIED |
| BPBuffalo Plant 30 | Buffalo | TX | — | ◇ UNVERIFIED |
| BRBuffalo Ready Mix | Buffalo | TX | — | ◇ UNVERIFIED |
| BFBuilder Firstsource | Apex | NC | — | ◇ UNVERIFIED |
| BCBuilders Choice | Ottawa | KS | — | ◇ UNVERIFIED |
| BCBuilders Choice | Saint Joseph | MO | — | ◇ UNVERIFIED |
| BCBuilders Concrete | Sanger | CA | — | ◇ UNVERIFIED |
| BCBuilders Concrete Block CO | Richmond | KY | — | ◇ UNVERIFIED |
| BCBuilders Concrete of Richmond | Richmond | KY | — | ◇ UNVERIFIED |
| BCBuilders Concrete & Supply- Hillsboro | Hillsboro | KS | — | ◇ UNVERIFIED |
| BFBuilders Firstsource | Benson | NC | — | ◇ UNVERIFIED |
| BSBuilders Sand and Cement CO. INC. | Davenport | IA | — | ◇ UNVERIFIED |
| BSBuilders Sand & Cement CO | Silvis | IL | — | ◇ UNVERIFIED |
| BSBuilders Supply Company | Millbrook | AL | — | ◇ UNVERIFIED |
| BSBuilders Supply Company | Montgomery | AL | — | ◇ UNVERIFIED |
| BPBuilding Products CORP | Belleville | IL | — | ◇ UNVERIFIED |
| BCBullard Concrete Facility - Florala | Florala | AL | — | ◇ UNVERIFIED |
| BDBull Dog Ready Mix | Houston | TX | — | ◇ UNVERIFIED |
| BRBulldog Ready Mix, Attala Plant | Sallis | MS | — | ◇ UNVERIFIED |
| BDBurgess Do It Center Sumter | Sumter | SC | — | ◇ UNVERIFIED |
| BCBurks Concrete Contractors, INC. | Santa Fe | TX | — | ◇ UNVERIFIED |
| BCBurnco Colorado - Ft. Lupton Plant | Fort Lupton Area | CO | — | ◇ UNVERIFIED |
| BCBurnco Colorado LLC - Portable Rmx 1 | Denver | CO | — | ◇ UNVERIFIED |
| BIBurrell Industries INC. | New Kensington | PA | — | ◇ UNVERIFIED |
| BQBussen Quarries Incorporated | Saint Louis | MO | — | ◇ UNVERIFIED |
| BUBuzzi Unicem Ready Mix LLC Dba Memphis Ready Mix Millington Plant | Millington | TN | — | ◇ UNVERIFIED |
| BUBuzzi Unicem USA - Bonner Springs | Bonner Springs | KS | — | ◇ UNVERIFIED |
| BLBwb LLC Superior Onsite Plant #12 | Southfield | MI | — | ◇ UNVERIFIED |
| BRB&w Ready Mix | Watonga | OK | — | ◇ UNVERIFIED |
| BSByrne Sand & Gravel, INC. | Middleboro | MA | — | ◇ UNVERIFIED |
| BRByron Ready Mix | Byron | GA | — | ◇ UNVERIFIED |
| CCCabarrus Concrete Co-salisbury | Salisbury | NC | — | ◇ UNVERIFIED |
| CPCabot Plant 607 | Cabot | AR | — | ◇ UNVERIFIED |
| CICadman INC Gold Bar | Gold Bar | WA | — | ◇ UNVERIFIED |
| CMCadman Materials Boardman | Boardman | OR | — | ◇ UNVERIFIED |
| CMCadman Materials INC | Everett | WA | — | ◇ UNVERIFIED |
| COCadman Orchards Facility | Vancouver | WA | — | ◇ UNVERIFIED |
| CSCadman Seattle INC | Seattle | WA | — | ◇ UNVERIFIED |
| CRCain Ranch Quarry | Lee Vining | CA | — | ◇ UNVERIFIED |
| CRCajun Ready Mix Concrete, LLC | Livingston | LA | — | ◇ UNVERIFIED |
| CMCalaveras Materials INC | Sjvapcd | CA | — | ◇ UNVERIFIED |
| CMCalaveras Materials INC | Lathrop | CA | — | ◇ UNVERIFIED |
| CSCalaveras Standard Materials INC. | Corona | CA | — | ◇ UNVERIFIED |
| CICalclean, INC. | Vacaville | CA | — | ◇ UNVERIFIED |
| CRCaldwell Ready-mix, INC. | Hudson | NC | — | ◇ UNVERIFIED |
| CCCalhoun County Concrete | Piedmont | AL | — | ◇ 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 |
| CCCallahan Concrete Company | Lexington | NC | — | ◇ UNVERIFIED |
| CCCalmat CO | Poway | CA | — | ◇ UNVERIFIED |
| CCCalmat CO. | Bakersfield | CA | — | ◇ UNVERIFIED |
| CCCalmat CO. | Fresno | CA | — | ◇ UNVERIFIED |
| CCCalmat CO Dba Shamrock Materials | Napa | CA | — | ◇ UNVERIFIED |
| CCCalmat Company Dba Shamrock Materials INC | Petaluma | CA | — | ◇ UNVERIFIED |
| CCCalmat Company Dba Shamrock Materials-st Helena Plant | Saint Helena | CA | — | ◇ UNVERIFIED |
| CCCalmat CO (owner) | Upland | CA | — | ◇ UNVERIFIED |
| CGCalmat - Goleta | Goleta | CA | — | ◇ UNVERIFIED |
| COCalmat of Fresno | Fresno | CA | — | ◇ UNVERIFIED |
| CMCal Mix Concrete Co, Inc, Dba California Ready Mix | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
