| BBBest Block - Bridgeton, Mo Plant [earth City] | Bridgeton | MO | — | ◇ UNVERIFIED |
| BBBest Block - Featherlite Converse Plant | Converse | TX | — | ◇ UNVERIFIED |
| BBBest Block - Sawgrass Road Block Plant | Bunnell | FL | — | ◇ UNVERIFIED |
| BCBest Concrete & Supply | Wyandotte | MI | — | ◇ UNVERIFIED |
| BCBestway Concrete CO | No City Name | CO | — | ◇ UNVERIFIED |
| BCBestway Concrete CO | Windsor | CO | — | ◇ UNVERIFIED |
| BCBestway Concrete Co-greeley | Greeley | CO | — | ◇ UNVERIFIED |
| BCBestway Concrete - Firestein Pit | Greeley | CO | — | ◇ UNVERIFIED |
| BCBestway Concrete - the Shores | Firestone | CO | — | ◇ UNVERIFIED |
| BSBetco Supreme INC | Odenton | MD | — | ◇ UNVERIFIED |
| BCBeton Concrete - Mount Vernon | Mount Vernon | TX | — | ◇ UNVERIFIED |
| BBBetter Block Company Incorporated | Springfield | TN | — | ◇ UNVERIFIED |
| BABetteroads Asphalt Corporation Planta 10 | Manati | PR | — | ◇ UNVERIFIED |
| BBBig & Bald Concrete LLC | Bradenton | FL | — | ◇ UNVERIFIED |
| BDBig D Concrete INC | Dallas | TX | — | ◇ UNVERIFIED |
| BRBighorn Ready Mix | Greybull | WY | — | ◇ UNVERIFIED |
| BHBig Horn Redi Mix | Cody | WY | — | ◇ UNVERIFIED |
| BHBig Horn Redi Mix | Thermopolis | WY | — | ◇ UNVERIFIED |
| BHBig Horn Redi Mix | Powell | WY | — | ◇ UNVERIFIED |
| BVBig Valley Concrete - Mill Creek Facility | Mill Creek | PA | — | ◇ UNVERIFIED |
| BWBill Willard INC | Northampton | MA | — | ◇ UNVERIFIED |
| BCB-k Concrete | Warrenville | IL | — | ◇ UNVERIFIED |
| BCBlack Concrete Incorporated | Lexington | NC | — | ◇ UNVERIFIED |
| BCBlackJack Concrete LLC | Tyrone | GA | — | ◇ UNVERIFIED |
| BCBlager Concrete Company | Clinton | IL | — | ◇ UNVERIFIED |
| BRBlager Ready Mix Concrete Production | Urbana | IL | — | ◇ UNVERIFIED |
| BBBlair Block LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| BLBlalock Lumber Company, L.p. | Sevierville | TN | — | ◇ UNVERIFIED |
| BLBlalocks Lumber Company Concrete Plant 3 | Seymour | TN | — | ◇ UNVERIFIED |
| BRBlanco Road Ready Mix Plant | San Antonio | TX | — | ◇ UNVERIFIED |
| BRBleigh Ready Mix CO | Quincy | IL | — | ◇ UNVERIFIED |
| BRBleigh Ready Mix Co-hannibal (b-1) | Hannibal | MO | — | ◇ UNVERIFIED |
| BEBlended Equipment Solutions | Altoona | IA | — | ◇ UNVERIFIED |
| BBlocklite | Selma | CA | — | ◇ UNVERIFIED |
| BUBlock USA Mid-south Division, LLC | Panama City Beach | FL | — | ◇ UNVERIFIED |
| BLBlockworks, LLC | Lebanon | TN | — | ◇ UNVERIFIED |
| BLBlockworks, LLC | Gallatin | TN | — | ◇ UNVERIFIED |
| BLBlockworks, LLC | Winchester | TN | — | ◇ UNVERIFIED |
| BBBlomberg Bros INC | Farina | IL | — | ◇ UNVERIFIED |
| BEBloquera El Valle INC. | Lajas | PR | — | ◇ UNVERIFIED |
| BRBlt Ready Mix, INC. | Hazen | NV | — | ◇ UNVERIFIED |
| BCBlue Circle Williams Brothers | Winder | GA | — | ◇ UNVERIFIED |
| BCBlue Circle Williams Brothers | Perry | GA | — | ◇ UNVERIFIED |
| BCBlue Circle Williams Brothers | Athens | GA | — | ◇ UNVERIFIED |
| BDBlue Daisy Cement Prod. INC | Gardena | CA | — | ◇ UNVERIFIED |
| BDBlue DIamond USA LLC | Orlando | FL | — | ◇ UNVERIFIED |
| BDBlue Dot Readi-mix 521 Plant | Fort Mill | SC | — | ◇ UNVERIFIED |
| BDBlue Dot Readi-mix, LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| BDBlue Dot Readi-mix, LLC - Albemarle | Albemarle | NC | — | ◇ UNVERIFIED |
| BDBlue Dot Readi-mix, LLC - Harrisburg | Harrisburg | NC | — | ◇ UNVERIFIED |
| BRBluedot Readi Mix Rock Hill | Rock Hill | SC | — | ◇ UNVERIFIED |
| BRBluedot Ready Mix-albemarle (plant #109) | Albemarle | NC | — | ◇ UNVERIFIED |
| BRBluedot Ready Mix-duncan (plant #111) | Duncan | SC | — | ◇ UNVERIFIED |
| BRBluedot Ready Mix-simpsonville (plant #110) | Simpsonville | SC | — | ◇ UNVERIFIED |
| BMBluegrass Materials CO LLC - Allen Block Plant | Allen | KY | — | ◇ UNVERIFIED |
| BMBluegrass Materials CO LLC - Baxter Block Plant | Baxter | KY | — | ◇ UNVERIFIED |
| BMBluegrass Materials Company, Llc- Douglasville Quarry | Douglasville | GA | — | ◇ UNVERIFIED |
| BMBluegrass Materials Marriottsville Quarry | Marriottsville | MD | — | ◇ UNVERIFIED |
| BMBluegrass Materials Rockdale Quarry | Clear Spring | MD | — | ◇ UNVERIFIED |
| BRBlue Ridge Cbp | Blue Ridge | TX | — | ◇ UNVERIFIED |
| BRBlue Ridge Concrete Products, INC. | Hillsville | VA | — | ◇ UNVERIFIED |
| BRBlue Ridge Ready Mix | Weyers Cave | VA | — | ◇ UNVERIFIED |
| BSBlue Star Ready Mix Corporation | Noblesville | IN | — | ◇ UNVERIFIED |
| BBBluffdale Batch Plant | Riverton | UT | — | ◇ UNVERIFIED |
| BBluffton #344 | Bluffton | SC | — | ◇ UNVERIFIED |
| BZBlythe Zachry Jv - Batch Plant 2 | Gaffney | SC | — | ◇ UNVERIFIED |
| BCBmh Concrete, INC. | West Palm Beach | FL | — | ◇ UNVERIFIED |
| BPBmi Products of Northern Il INC | Antioch | IL | — | ◇ UNVERIFIED |
| BBBob Barnett Ready-mix | Harrisburg | IL | — | ◇ UNVERIFIED |
| BBBob Barnett Ready Mix INC | Carmi | IL | — | ◇ UNVERIFIED |
| BBBob Barnett Ready-mix INC | Equality | IL | — | ◇ UNVERIFIED |
| BHBobby Hamby Concrete Co., INC. | Wilkesboro | NC | — | ◇ UNVERIFIED |
| BCBob's Concrete | Placeholder | CA | — | ◇ UNVERIFIED |
| BGBode Gravel CO | San Francisco | CA | — | ◇ UNVERIFIED |
| BPBode's Precast | Everson | WA | — | ◇ UNVERIFIED |
| BPBode's Precast | Mount Vernon | WA | — | ◇ UNVERIFIED |
| BSBoerne Site | Boerne | TX | — | ◇ UNVERIFIED |
| BBogota | Bogota | NJ | — | ◇ UNVERIFIED |
| BPBohringer Portable Concrete P | Cheyenne | WY | — | ◇ UNVERIFIED |
| BQBolingbrook Quality Mix | Bolingbrook | IL | — | ◇ UNVERIFIED |
| BCBonded Concrete Pittsfield Plant | Pittsfield | MA | — | ◇ UNVERIFIED |
| BRBonifay Ready Mix Plant | Bonifay | FL | — | ◇ UNVERIFIED |
| BCBonnici Concrete L.l.c. | Utica | MI | — | ◇ UNVERIFIED |
| B1Boone 1 - Nc Rmc | Boone | NC | — | ◇ UNVERIFIED |
| BCBoone County Concrete, INC. | Albion | NE | — | ◇ UNVERIFIED |
| BRBoone Ready Mix INC | Burlington | KY | — | ◇ UNVERIFIED |
| BRBoone Ready-mix INC | Boone | NC | — | ◇ UNVERIFIED |
| BCBoral Concrete Products, LLC | Dallas | TX | — | ◇ UNVERIFIED |
| BPBorgert Products | Saint Joseph | MN | — | ◇ UNVERIFIED |
| BCBosse Concrete Products | Jonesboro | GA | — | ◇ UNVERIFIED |
| BCBoston Concrete CORP | Lowell | MA | — | ◇ UNVERIFIED |
| BSBoston Sand & Gravel Company | Boston | MA | — | ◇ UNVERIFIED |
| BSBoston Sand & Gravel Company | Charlestown | MA | — | ◇ UNVERIFIED |
| BRBoulder Ready Mix Concrete INC | Boulder | CO | — | ◇ UNVERIFIED |
| BGBowling Green Concrete - Rockfield Ready-mix Plant | Rockfield | KY | — | ◇ UNVERIFIED |
| BBBoxley Block, LLC | Lynchburg | VA | — | ◇ UNVERIFIED |
| BCBoxley Concrete Products | Lynchburg | VA | — | ◇ UNVERIFIED |
| BCBoxley Concrete Products of Va INC | Summersville | WV | — | ◇ UNVERIFIED |
| BMBoxley Materials Company Roanoke Ready Mix Plant | Roanoke | VA | — | ◇ UNVERIFIED |
| BRBoxley Ready Mix LLC - Martinsville Plant | Martinsville | VA | — | ◇ UNVERIFIED |
