| BCBrown-campbell Company | Minneapolis | MN | — | ◇ UNVERIFIED |
| BGBrown Gates CO LLC | Liberty | KY | — | ◇ UNVERIFIED |
| BHBrown Hawk LLC Dba Northern Lights Steel Fab | North Branch | MN | — | ◇ UNVERIFIED |
| BCBrown's Certified Welding INC | Bristol | VT | — | ◇ UNVERIFIED |
| BGBrown's Greens | Brooksville | ME | — | ◇ UNVERIFIED |
| BSBrowns Saw Shop | Ville Platte | LA | — | ◇ UNVERIFIED |
| BSBrown-strauss Steel | Aurora | CO | — | ◇ UNVERIFIED |
| BWBrown Welding Company | Laurel | MD | — | ◇ UNVERIFIED |
| BDBruce & Dana Wholesale INC | Salem | OR | — | ◇ UNVERIFIED |
| BEBrunton Enterprises | Universal City | CA | — | ◇ UNVERIFIED |
| BMBrw Metal Industries | Houston | TX | — | ◇ UNVERIFIED |
| BLBryanAprilbuilding LLC | Ogden | UT | — | ◇ UNVERIFIED |
| BFBryant Fuel & Power Systems INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| BSBryant Sheet Metal, INC. | Hanover | MA | — | ◇ UNVERIFIED |
| BIBrzozka Industries INC. | Holbrook | NY | — | ◇ UNVERIFIED |
| BSB & S Welding Services | Opp | AL | — | ◇ UNVERIFIED |
| BPBta Plant #3 | Wellford | SC | — | ◇ UNVERIFIED |
| BMBtd Manufacturing INC | Detroit Lakes | MN | — | ◇ UNVERIFIED |
| BFBt Fab | Sparks | NV | — | ◇ UNVERIFIED |
| BTB & T Metal Works, INC. | Ocala | FL | — | ◇ UNVERIFIED |
| BMBtm Metalworks LLC | Springfield | MO | — | ◇ UNVERIFIED |
| BLBtr LLC | Paterson | NJ | — | ◇ UNVERIFIED |
| BKBuck Kreihs Marine Repair LLC | New Orleans | LA | — | ◇ UNVERIFIED |
| BMBuell Manufacturing Company | Lyons | IL | — | ◇ UNVERIFIED |
| BSBuffalo Structural Steel, INC. | Titusville | PA | — | ◇ UNVERIFIED |
| BWBuffalo Welding INC | Portland | OR | — | ◇ UNVERIFIED |
| BFBuilders Firstsource - Southeast Group, LLC | Shelby | AL | — | ◇ UNVERIFIED |
| BIBuilders Iron, INC. | Grandville | MI | — | ◇ UNVERIFIED |
| BMBuilders Metal Supply | Louisville | KY | — | ◇ UNVERIFIED |
| BSBuilders Steel Company | Kansas City | MO | — | ◇ UNVERIFIED |
| BSBuilders Steel Company | Overland Park | KS | — | ◇ UNVERIFIED |
| BSBuilders Steel INC / 1924 S 49th W Ave Steel Fab Shop | Tulsa | OK | — | ◇ UNVERIFIED |
| BEBuilding Envelope Systems | Plainville | MA | — | ◇ UNVERIFIED |
| BMBuilding Materials Manufacturing Bmmc | Port Arthur | TX | — | ◇ UNVERIFIED |
| BTBuilt The Traditional Way Llc | Grove City | OH | — | ◇ UNVERIFIED |
| BABullard Abrasive Products | Westborough | MA | — | ◇ UNVERIFIED |
| BIBulldog Industries, INC. | Knightdale | NC | — | ◇ UNVERIFIED |
| BIBulldog Industries, INC. | Knightdale | NC | — | ◇ UNVERIFIED |
| BIBulldog Industries, INC. | Knightdale | NC | — | ◇ UNVERIFIED |
| BWBulldog Welding and Specialties LLC | The Dalles | OR | — | ◇ UNVERIFIED |
| BMBulling Metal Works, INC. | San Leandro | CA | — | ◇ UNVERIFIED |
| BRBull Run Machine & Wldg Co* | Knoxville | TN | — | ◇ UNVERIFIED |
| BRBull Run Metal Fabricators & Engineers INC | Clinton | TN | — | ◇ UNVERIFIED |
| BRBull Run Metal, INC. | Manassas | VA | — | ◇ UNVERIFIED |
| BIBunch INC | Kings Mountain | NC | — | ◇ UNVERIFIED |
| BLBunker, LLC | Sault Sainte Marie | MI | — | ◇ UNVERIFIED |
 Burdine-anderson Corporation | Rabbit Hash | KY | — | ◇ UNVERIFIED |
| BMBurgett Metal Works | Coweta | OK | — | ◇ UNVERIFIED |
| BABurke and Company, INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| BSBurks & Sons Metal Fabrication | Milton | FL | — | ◇ UNVERIFIED |
