| BBalcon | Manassas | VA | — | ◇ UNVERIFIED |
| BBBaldi Bros | China Lake | CA | — | ◇ UNVERIFIED |
| BCBallard Contractors | Warrenton | GA | — | ◇ UNVERIFIED |
| BCBallard Contractors, INC. - Moundville | Moundville | AL | — | ◇ UNVERIFIED |
| BRBallard Ready Mix INC | Anoka | MN | — | ◇ UNVERIFIED |
| BBBall, Ball and Brosamer INC | Denver (portable) | CO | — | ◇ UNVERIFIED |
| BCBall Construction Company LLC | Sault Sainte Marie | MI | — | ◇ UNVERIFIED |
 Baltimore Fabrication | Emigsville | PA | — | ◇ UNVERIFIED |
| BCBama Concrete Birmingham | Birmingham | AL | — | ◇ UNVERIFIED |
| BCBama Concrete Birmingham Hoover Plant | Birmingham | AL | — | ◇ UNVERIFIED |
| BCBama Concrete - Linden Temporary Plant | Linden | AL | — | ◇ UNVERIFIED |
| BCBama Concrete - Somerville Plant | Somerville | AL | — | ◇ UNVERIFIED |
| BAB and B Concrete Company Inc, Alcorn Ready Mix, Biggersville | Rienzi | MS | — | ◇ UNVERIFIED |
| BAB and B Concrete Company Inc, Ripley | Ripley | MS | — | ◇ UNVERIFIED |
| BCBandon Concrete and Development | Bandon | OR | — | ◇ UNVERIFIED |
| BBBangert Bros Const (deleted 2/1/90) | Unknown | CO | — | ◇ UNVERIFIED |
| BBBangert Brothers (millstone Bangert)-bussen Road Plant | Saint Louis | MO | — | ◇ UNVERIFIED |
| BBBarboursville Block Manufacturing Company | Huntington | WV | — | ◇ UNVERIFIED |
| BMBard Materials-galena | Galena | IL | — | ◇ UNVERIFIED |
| BMBard Materials Platteville | Platteville | WI | — | ◇ UNVERIFIED |
| BMBard Materials-warren | Warren | IL | — | ◇ UNVERIFIED |
| BIBardon INC. | Falmouth | VA | — | ◇ UNVERIFIED |
| BRBark River Concrete Products | Bark River | MI | — | ◇ UNVERIFIED |
| BIBarlett INC | Moffatt | CO | — | ◇ UNVERIFIED |
| BBBarnard Bessac Jv | Redwood City | CA | — | ◇ UNVERIFIED |
| BCBarnekow Construction & Supply | Commerce City | CO | — | ◇ UNVERIFIED |
| BDBarney & Dickenson, INC. | Tioga Center | NY | — | ◇ UNVERIFIED |
| BCBarry Concrete | Opelousas | LA | — | ◇ UNVERIFIED |
| BSBarry Swenson Builder | San Jose | CA | — | ◇ UNVERIFIED |
| BEBartholomew Enterprises | Truckee | CA | — | ◇ UNVERIFIED |
| BBasalite | Carson City | NV | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products | Fort Lupton | CO | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products LLC. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products LLC Truck Shop | Carson City | NV | — | ◇ UNVERIFIED |
| BCBasalite Concrete Products Site | Portland | OR | — | ◇ UNVERIFIED |
| BRBasic Ready Mix | Rome | GA | — | ◇ UNVERIFIED |
| BABasin Avenue & Panorama | Pahrump | NV | — | ◇ UNVERIFIED |
| BPBassbrook Products INC Dba Cohasset Concrete Produ | Cohasset | MN | — | ◇ UNVERIFIED |
| BLBaton LLC | Louisville | KY | — | ◇ UNVERIFIED |
| BLBaton LLC | Louisville | KY | — | ◇ UNVERIFIED |
| BMBattle Mtn Cbp | Battle Mountain | NV | — | ◇ UNVERIFIED |
| BBauer | Tooele | UT | — | ◇ UNVERIFIED |
| BCBay Concrete | Eight Mile | AL | — | ◇ UNVERIFIED |
| BRBayou Ready Mix LLC - Bunkie Plant | Bunkie | LA | — | ◇ UNVERIFIED |
| BRBaytown Ready-mix | Baytown | TX | — | ◇ UNVERIFIED |
| BRBayview Redi Mix INC | Aberdeen | WA | — | ◇ UNVERIFIED |
| BBB & B Concrete CO INC Oxford Div | Oxford | MS | — | ◇ UNVERIFIED |
| BEB&b Excavating INC | Edwards | CO | — | ◇ UNVERIFIED |
| BBB & B Redimix, INC. - Phillipsburg | Phillipsburg | KS | — | ◇ UNVERIFIED |
| BBB & B Redimix, INC. - Stockton | Stockton | KS | — | ◇ UNVERIFIED |
