| BPBaldwin Paving: Plant 7 | Kennesaw | GA | — | ◐ LIKELY ACTIVE |
| BCBallard Concrete-deer Meadows Plant | Moundville | AL | — | ◐ LIKELY ACTIVE |
| BCBama Concrete Birmingham, Bessemer Plant | Bessemer | AL | — | ◐ LIKELY ACTIVE |
| BCBama Concrete Birmingham Woodstock Plant | Woodstock | AL | — | ◐ LIKELY ACTIVE |
| BCBama Concrete - Whitson Temporary Plant | Berry | AL | — | ◐ LIKELY ACTIVE |
| BCBanaszak Concrete Corporation | Davie | FL | — | ◐ LIKELY ACTIVE |
| BAB and B Concrete Company | Holly Springs | MS | — | ◐ LIKELY ACTIVE |
| BAB and B Concrete Company Inc, Pontotoc Division | Pontotoc | MS | — | ◐ LIKELY ACTIVE |
| BCBankhead Contracting, INC. | Kennesaw | GA | — | ◐ LIKELY ACTIVE |
| BBBanks Brothers Asphalt Paving | Travelers Rest | SC | — | ◐ LIKELY ACTIVE |
| BMBarletta Materials & Const/nescopeck | Nescopeck | PA | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting - Benson Plant | Benson | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting - Clinton Plant (multi-site) | Clinton | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Co-duplin | Kenansville | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting CO. - Lumberton Asphalt Plant Site #2 | Lumberton | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company | Rocky Mount | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company - Elizabeth City Plant | Elizabeth City | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company-kinston Plant #3 | Kinston | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company - New Bern Plant | New Bern | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company - Princeton | Princeton | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company - Raleigh Plant | Raleigh | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company - Weldon Plant | Weldon | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company - Williamston | Williamston | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting Company - Winton Plant | Winton | NC | — | ◐ LIKELY ACTIVE |
| BCBarnhill Contracting - Faison Plant (multi-site) | Faison | NC | — | ◐ LIKELY ACTIVE |
| BABarrett Asphalt Inc/morrisville | Morrisville | PA | — | ◐ LIKELY ACTIVE |
| BPBarrett Paving Materials INC | Fairborn | OH | — | ◐ LIKELY ACTIVE |
| BPBarrett Paving Norwood Quarry | Norwood | NY | — | ◐ LIKELY ACTIVE |
| BMBarretts Minerals INC. Mill Site | Dillon | MT | — | ◐ LIKELY ACTIVE |
| BCBarrus Construction Company | Greenville | NC | — | ◐ LIKELY ACTIVE |
| BSBartoo Sand & Gravel INC | Truth Or Consequences | NM | — | ◐ LIKELY ACTIVE |
| BCBasic Construction Company -new Kent Asphalt Plant | Eltham | VA | — | ◐ LIKELY ACTIVE |
| BCBates County Redi-mix INC - Butler Plant | Butler | MO | — | ◐ LIKELY ACTIVE |
| BCBayer Const. (asphalt Plant)(portable)(air) | Junction City | KS | — | ◐ LIKELY ACTIVE |
| BCBayou Concrete LLC - Tallahassee Four Points Plant | Tallahassee | FL | — | ◐ LIKELY ACTIVE |
| BCBayshore Concrete Products CORP - Cape Charles | Cape Charles | VA | — | ◐ LIKELY ACTIVE |
| BAB&b Asphalt, LLC | Byron | GA | — | ◐ LIKELY ACTIVE |
| BMBc Mississippi INC | Columbus | MS | — | ◐ LIKELY ACTIVE |
| BSB.C. Stone, Inc. | Everett | PA | 100–499 | ◐ LIKELY ACTIVE |
| BSBecker & Scrivens Concrete Products, Inc. | Hillsdale | MI | 20–99 | ◐ LIKELY ACTIVE |
| BCBedford County Asphalt | Shelbyville | TN | — | ◐ LIKELY ACTIVE |
| BRBedford Ready Mix Concrete Company | Bedford | VA | — | ◐ LIKELY ACTIVE |
| BQBedrock Quartz Surfaces | West Jordan | UT | 100–499 | ◐ LIKELY ACTIVE |
| BSBeemsterboer Slag CORP Contractor of Ar | East Chicago | IN | — | ◐ LIKELY ACTIVE |
| BRBender Ready Mix INC | Santa Ana | CA | 20–99 | ◐ LIKELY ACTIVE |
| BCBenevento Concrete Nh LLC | Loudon | NH | — | ◐ LIKELY ACTIVE |
| BRBenton Ready Mix | Benton | AR | — | ◐ LIKELY ACTIVE |
| BMBerry Marble CO INC | Tyler | TX | 1–19 | ◐ LIKELY ACTIVE |
| BCBestway Concrete CO | Windsor | CO | — | ◐ LIKELY ACTIVE |
| BABettis Asphalt - Lawrence (asphalt Plant) (portable) (air) | Lawrence | KS | — | ◐ LIKELY ACTIVE |
| BABettis Asphalt - Limon Asphalt Plant | Limon | CO | — | ◐ LIKELY ACTIVE |
| BCBexar Concrete Works I, Ltd | San Antonio | TX | 100–499 | ◐ LIKELY ACTIVE |
| BBBishop Brothers Const Co/wysox Plt | Wysox | PA | — | ◐ LIKELY ACTIVE |
| BSBi State Emmulsion | Saint Louis | MO | — | ◐ LIKELY ACTIVE |
| BBitumar | Douglasville | GA | — | ◐ LIKELY ACTIVE |
| BCBlack Concrete Incorporated | Lexington | NC | — | ◐ LIKELY ACTIVE |
| BPBlack Plumeria LLC | Honolulu | HI | — | ◐ LIKELY ACTIVE |
| BRBlack Rock Services LLC | Albuquerque | NM | 1–19 | ◐ LIKELY ACTIVE |
| BCBlackstone Construction LLC | Russellville | AR | — | ◐ LIKELY ACTIVE |
| BRBlager Ready Mix Concrete Production | Urbana | IL | — | ◐ LIKELY ACTIVE |
| BBBlair Brothers Incorporated | Suffolk | VA | — | ◐ LIKELY ACTIVE |
| BBBlake Bottom Borrow Pit | Huntsville | AL | — | ◐ LIKELY ACTIVE |
| BLBlalock Lumber Company, L.p. | Sevierville | TN | — | ◐ LIKELY ACTIVE |
| BTBlock Tops - Anaheim | Anaheim | CA | 20–99 | ◐ LIKELY ACTIVE |
| BDBlue Dot Readi-mix 521 Plant | Fort Mill | SC | — | ◐ LIKELY ACTIVE |
| BRBlue Ridge Asphalt Plant | Blue Ridge | VA | — | ◐ LIKELY ACTIVE |
| BSBlue Sky Countertops, LLC | Denton | TX | 20–99 | ◐ LIKELY ACTIVE |
| BBBlythe Brothers Asphalt CO LLC - Rock Hill | Rock Hill | SC | — | ◐ LIKELY ACTIVE |
| BBBlythe Brothers Asphalt Company, LLC Old Nations | Charlotte | NC | — | ◐ LIKELY ACTIVE |
| BCBlythe Construction, INC. - Arrowood Plant | Charlotte | NC | — | ◐ LIKELY ACTIVE |
| BCBlythe Construction, INC. - Plant #1 | Greensboro | NC | — | ◐ LIKELY ACTIVE |
| BCBlythe Construction, Inc., Plant No. 8 | Stanley | NC | — | ◐ LIKELY ACTIVE |
| BCBlythe Construction INC. - Thomasville Asphalt Plant | Thomasville | NC | — | ◐ LIKELY ACTIVE |
| BIBlythe Industries Incorporated Concord Plant | Concord | NC | — | ◐ LIKELY ACTIVE |
| BOBmc O'fallon | O Fallon | MO | — | ◐ LIKELY ACTIVE |
| BSBmc Stone Llc-defiance Quarry | Defiance | MO | — | ◐ LIKELY ACTIVE |
| BQBNA Quikrete | Nashville | TN | 20–99 | ◐ LIKELY ACTIVE |
| BMBoggs Materials INC Elgin Plant | Elgin | SC | — | ◐ LIKELY ACTIVE |
| BMBoggs Materials INC Mullins Plant | Mullins | SC | — | ◐ LIKELY ACTIVE |
| BMBoggs Materials, INC. - Siler City Plant | Staley (chatham,nc) | NC | — | ◐ LIKELY ACTIVE |
| BMBoggs Materials, INC - Stafford Street Asphalt Plant | Monroe | NC | — | ◐ LIKELY ACTIVE |
| BPBoggs Paving Incorporated | Monroe | NC | — | ◐ LIKELY ACTIVE |
| BABolen Asphalt Paving, INC. | Lachine | MI | — | ◐ LIKELY ACTIVE |
| BRBonifay Ready Mix Plant | Bonifay | FL | — | ◐ LIKELY ACTIVE |
| BCBoston Concrete Corp. | Lowell, MA | MA | 20–99 | ◐ LIKELY ACTIVE |
| BLBourbon Limestone CO INC | Paris | KY | — | ◐ LIKELY ACTIVE |
| BABowers Asphalt & Paving, INC (0387040084) | Walbridge | OH | — | ◐ LIKELY ACTIVE |
| BCBoxley Concrete Products of Va INC | Summersville | WV | — | ◐ LIKELY ACTIVE |
| BMBoxley Materials Company | Blue Ridge | VA | — | ◐ LIKELY ACTIVE |
| BRBoxley Ready Mix LLC - Roanoke Plant | Roanoke | VA | — | ◐ LIKELY ACTIVE |
| BRBoyd Ready Mix INC | Bryan | TX | 20–99 | ◐ LIKELY ACTIVE |
| BCBradley Concrete, INC. | Cleveland | TN | — | ◐ LIKELY ACTIVE |
| BCBranch County Road Commission | Coldwater | MI | — | ◐ LIKELY ACTIVE |
| BRBrannan Rock Creek | Lafayette | CO | 1–19 | ◐ LIKELY ACTIVE |
| BSBrannan Sand & Gravel CO - 5880 Lipan St | Denver Area | CO | — | ◐ LIKELY ACTIVE |
| BCBranscome - Chesterfield | Midlothian | VA | — | ◐ LIKELY ACTIVE |
| BIBranscome Inc.- Eastern Shore | Pocomoke City | MD | — | ◐ LIKELY ACTIVE |
| BIBranscome INC - Hampton - Rip Rap Road | Hampton | VA | — | ◐ LIKELY ACTIVE |
| BIBranscome INC - Norfolk Westminster | Norfolk | VA | — | ◐ LIKELY ACTIVE |
| BOBranscome Operating LLC - Hofmeyer Pit | Charles City | VA | — | ◐ LIKELY ACTIVE |