| BNBradFord Now LLC | Benson | AZ | — | ◇ UNVERIFIED |
| BUBrass Unique Metal Products INC | South El Monte | CA | — | ◇ UNVERIFIED |
| BLBrenda L. Mathews | Newark | CA | — | ◇ UNVERIFIED |
| BWBrian W Vicklund | White City | OR | — | ◇ UNVERIFIED |
| BEBridges Equipment Services & Custom Fabrication INC | Eufaula | AL | — | ◇ UNVERIFIED |
| BBrilar | Novi | MI | — | ◇ UNVERIFIED |
| BMBristol Metals, INC. | Bloomfield | NY | — | ◇ UNVERIFIED |
| BTBroadwind Towers | Manitowoc | WI | — | ◇ UNVERIFIED |
| BSBroemeling Steel and Machine | Lewiston | ID | — | ◇ UNVERIFIED |
| BBBroken Bridge, LLC | Salem | OR | — | ◇ UNVERIFIED |
| BABrooks Automation Inc., Brooks Life Sciences | El Segundo | CA | — | ◇ UNVERIFIED |
 Brooks Industrial Marketplace | Fontana | CA | — | ◇ UNVERIFIED |
| BWBrooks Welding, INC. | Valdosta | GA | — | ◇ UNVERIFIED |
| BOBrothers Ornamental Iron | Fresno | CA | — | ◇ UNVERIFIED |
| BCBrown Campbell Company | Milwaukee | WI | — | ◇ UNVERIFIED |
| BCBrown-campbell Company | Maple Heights | OH | — | ◇ UNVERIFIED |
| BGBrown Gates CO LLC | Liberty | KY | — | ◇ UNVERIFIED |
| BHBrown Hawk LLC Dba Northern Lights Steel Fab | North Branch | MN | — | ◇ UNVERIFIED |
| BMBrown Machine LLC | Beaverton | MI | — | ◇ UNVERIFIED |
| BCBrown's Certified Welding INC | Bristol | VT | — | ◇ UNVERIFIED |
| BGBrown's Greens | Brooksville | ME | — | ◇ UNVERIFIED |
| BOBrownsville Ornamental Iron Works, INC. | Pensacola | FL | — | ◇ UNVERIFIED |
| BFBryant Fuel & Power Systems INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| BIBrzozka Industries INC. | Holbrook | NY | — | ◇ UNVERIFIED |
| BCBsm Coram North America INC | Burnsville | MN | — | ◇ UNVERIFIED |
| BMB&S Millwright LLC | Mendon | OH | — | ◇ UNVERIFIED |
| BFBta Fabrication LLC | Mesa | AZ | — | ◇ UNVERIFIED |
| BKBuck Kreihs Marine Repair LLC | New Orleans | LA | — | ◇ UNVERIFIED |
| BGBuffalo Grating LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| BSBuffalo Structural Steel, INC. | Titusville | PA | — | ◇ UNVERIFIED |
| BIBuhler Industries | Willmar | MN | — | ◇ UNVERIFIED |
| BMBuhler Manufacturing | Fargo | ND | — | ◇ UNVERIFIED |
| BVBuhler Versatile USA INC | Willmar | MN | — | ◇ UNVERIFIED |
| BFBuilders Firstsource - Southeast Group, LLC | Shelby | AL | — | ◇ UNVERIFIED |
| BMBuilders Metal Supply | Louisville | KY | — | ◇ UNVERIFIED |
| BSBuilders Screen and Aluminum | Westwood | KS | — | ◇ 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 |
| BIBuildwise INC | El Cajon | CA | — | ◇ UNVERIFIED |
| BWBulldog Welding and Specialties LLC | The Dalles | OR | — | ◇ UNVERIFIED |
| BRBull Run Machine & Wldg Co* | Knoxville | TN | — | ◇ UNVERIFIED |
| BABurke and Company, INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| BIBusby International | Moses Lake | WA | — | ◇ UNVERIFIED |
| BIBusch Iron & Steel CO INC | Knoxville | TN | — | ◇ UNVERIFIED |
| BCButler Compressor Ii | Carson | CA | — | ◇ UNVERIFIED |
| BWB & W Manufacturing Company | Tulsa | OK | — | ◇ UNVERIFIED |
| BPBw Padilla INC Dba Brian's Welding | San Jose | CA | — | ◇ UNVERIFIED |
| BDBy Design Ornamentals | Riverside | CA | — | ◇ UNVERIFIED |
