| BIBbgy INC Dba Boger Concrete Company | Annville | PA | — | ◐ LIKELY ACTIVE |
| BNBelhaven - Nc Rmc | Belhaven | NC | — | ◐ LIKELY ACTIVE |
| BCBell Concrete | Chiefland | FL | — | ◐ LIKELY ACTIVE |
| BDBenchmark Distribution Terminals, LLC | Waterloo | IN | — | ◐ LIKELY ACTIVE |
| BBBenton & Brown LLC - Hot Mix Plant | Bossier City | LA | — | ◐ LIKELY ACTIVE |
| BRBethany Ready Mix | Bethany | MO | — | ◐ LIKELY ACTIVE |
| BABetteroads Asphalt Plt 17 | Caguas | PR | — | ◐ LIKELY ACTIVE |
| BABettis Asphalt and Construction INC / Bettis Pp8 | Bristow | OK | — | ◐ LIKELY ACTIVE |
| BABettis Asphalt & Const. - Topeka (waterworks) | Topeka | KS | — | ◐ LIKELY ACTIVE |
| BUBitumar USA INC. | Baltimore | MD | — | ◐ LIKELY ACTIVE |
| BSBitumen Supply LLC | Charlestown | IN | — | ◐ LIKELY ACTIVE |
| BBBlair Block LLC | Birmingham | AL | — | ◐ LIKELY ACTIVE |
| BBlaktop | Lebanon | NH | — | ◐ LIKELY ACTIVE |
| BLBlalocks Lumber Company Concrete Plant 3 | Seymour | TN | — | ◐ LIKELY ACTIVE |
| BIBlend-pro INC | Allentown | PA | — | ◐ LIKELY ACTIVE |
| BUBlock Usa, Gulfport Plant | Gulfport | MS | — | ◐ LIKELY ACTIVE |
| BDBlue Dot Readi-mix, LLC - Harrisburg | Harrisburg | NC | — | ◐ LIKELY ACTIVE |
| BMBluegrass Materials CO LLC - Allen Block Plant | Allen | KY | — | ◐ LIKELY ACTIVE |
| BMBluegrass Materials CO LLC - Baxter Block Plant | Baxter | KY | — | ◐ LIKELY ACTIVE |
| BMBluegrass Materials Company, Llc- Douglasville Quarry | Douglasville | GA | — | ◐ LIKELY ACTIVE |
| BPBluegrass Paving INC - Portable Asphalt Plant | Florence | KY | — | ◐ LIKELY ACTIVE |
| BRBlue Ridge Ready Mix | Weyers Cave | VA | — | ◐ LIKELY ACTIVE |
| BRBlythe Ridgeland Plant - Blythe Construction INC | Ridgeland | SC | — | ◐ LIKELY ACTIVE |
| BWBlythe West Columbia Plant - Blythe Construction INC | West Columbia | SC | — | ◐ LIKELY ACTIVE |
| BMBoggs Materials, INC. - Pee Dee Asphalt Plant | Lilesville | NC | — | ◐ LIKELY ACTIVE |
| BMBoggs Materials Rock Hill | Rock Hill | SC | — | ◐ LIKELY ACTIVE |
| BPBoggs Paving INC | Pageland | SC | — | ◐ LIKELY ACTIVE |
| BRBoulder Ready Mix Concrete INC | Boulder | CO | — | ◐ LIKELY ACTIVE |
| BCBourbon CO. Public Works | Redfield | KS | — | ◐ LIKELY ACTIVE |
| BSBrannan Sand & Gravel - Portable Asphalt | Castle Rock | CO | — | ◐ LIKELY ACTIVE |
| BDBranscome - Doswell | Doswell | VA | — | ◐ LIKELY ACTIVE |
| BOBranscome Oak Hall Concrete | Oak Hall | VA | — | ◐ LIKELY ACTIVE |
| BMBreckenridge Materials-paulina Hills Plt | Arnold | MO | — | ◐ LIKELY ACTIVE |
| BCBrooks Construction CO INC | Fort Wayne | IN | — | ◐ LIKELY ACTIVE |
| BCBrooks Construction Company Incorporated | Hoagland | IN | — | ◐ LIKELY ACTIVE |
| BRBucyrus Road Materials (0317010049) | Bucyrus | OH | — | ◐ LIKELY ACTIVE |
| BCBuilders Concrete of Richmond | Richmond | KY | — | ◐ LIKELY ACTIVE |
| BCBuilders Concrete & Supply (portable)(air) | Parsons | KS | — | ◐ LIKELY ACTIVE |
| BCBuilders Concrete & Supply (portable)(air) | Newton | KS | — | ◐ LIKELY ACTIVE |
| BRB&w Ready Mix | Watonga | OK | — | ◐ LIKELY ACTIVE |
| BCByerley Construction Company | Kingsport | TN | — | ◐ LIKELY ACTIVE |
| CICadman INC Gold Bar | Gold Bar | WA | — | ◐ LIKELY ACTIVE |
| CQCalcar Quarry | Paoli | IN | — | ◐ LIKELY ACTIVE |
| CCCalhoun County Concrete | Piedmont | AL | — | ◐ LIKELY ACTIVE |
| COCalmat of Central California | Mettler | CA | — | ◐ LIKELY ACTIVE |
| CICampania Intl Inc/pennsburg | Pennsburg | PA | — | ◐ LIKELY ACTIVE |
| CACapital Asphalt | Lansing | MI | — | ◐ LIKELY ACTIVE |
| CMCapital Materials (port-0414) | Marshall | MO | — | ◐ LIKELY ACTIVE |
| CQCapital Quarries - Danville Plant | Danville | MO | — | ◐ LIKELY ACTIVE |
| CCCardi CORP | Warwick | RI | — | ◐ LIKELY ACTIVE |