| BEBobby Emery Welding | Clayton | NM | — | ◇ UNVERIFIED |
| BMBob Murphy, INC. | Vestal | NY | — | ◇ UNVERIFIED |
| BSBob Sandlin CO. | Dallas | TX | — | ◇ UNVERIFIED |
| BWBohnert Welding | Jewell | KS | — | ◇ UNVERIFIED |
| BMBoise Metal Works, Inc. | Boise | ID | — | ◇ UNVERIFIED |
| BSBolling Steel Co., INC. | Salem | VA | — | ◇ UNVERIFIED |
| BSBorrmann Steel CO. | East Palo Alto | CA | — | ◇ UNVERIFIED |
| BRBoston Renaissance Charter School | Boston (hyde Park) | MA | — | ◇ UNVERIFIED |
| BBBostrom Bergen Metal Products | Oakland | CA | — | ◇ UNVERIFIED |
| BIBovic Industries INC | Lebanon | OR | — | ◇ UNVERIFIED |
| BFBowen Fabrication & Welding, LLC | Centerville | UT | — | ◇ UNVERIFIED |
| BOBoys of Nevada | Las Vegas | NV | — | ◇ UNVERIFIED |
| BPB & P Fabricating Company | College Park | GA | — | ◇ UNVERIFIED |
| BIBps Incorporated | Minneapolis | MN | — | ◇ UNVERIFIED |
| BMBraden Manufacturing | Fort Smith | AR | — | ◇ UNVERIFIED |
| BNBradFord Now LLC | Benson | AZ | — | ◇ UNVERIFIED |
| BCBratton Corporation | Kansas City | MO | — | ◇ UNVERIFIED |
| BSBreed Steering Sys. INC. | Grabill | IN | — | ◇ UNVERIFIED |
| BLBrenda L. Mathews | Newark | CA | — | ◇ UNVERIFIED |
| BMBressler Metal Works, INC. | Lebanon | PA | — | ◇ UNVERIFIED |
| BWBrian W Vicklund | White City | OR | — | ◇ UNVERIFIED |
| BEBridges Equipment Services & Custom Fabrication INC | Eufaula | AL | — | ◇ UNVERIFIED |
| BMBristol Metals, INC. | Bloomfield | NY | — | ◇ UNVERIFIED |
| BHBroadwind Heavy Industries | Clintonville | WI | — | ◇ UNVERIFIED |
| BTBroadwind Towers | Manitowoc | WI | — | ◇ UNVERIFIED |
| BSBroemeling Steel and Machine | Lewiston | ID | — | ◇ UNVERIFIED |
| BBBroken Bridge, LLC | Salem | OR | — | ◇ UNVERIFIED |
| BIBrooklyn Industrial Coatings | Spokane | WA | — | ◇ UNVERIFIED |
 Brooks Industrial Marketplace | Fontana | CA | — | ◇ UNVERIFIED |
| BWBrooks Welding, INC. | Valdosta | GA | — | ◇ UNVERIFIED |
 Brownell Boat Stands | Mattapoisett | MA | — | ◇ UNVERIFIED |
| BGBrown Gates CO LLC | Liberty | KY | — | ◇ UNVERIFIED |
| BHBrown Hawk LLC Dba Northern Lights Steel Fab | North Branch | MN | — | ◇ UNVERIFIED |
| BRBrown & Root Incorporated Greens Bayou Fabrication Yard | Houston | TX | — | ◇ UNVERIFIED |
| BCBrown's Certified Welding INC | Bristol | VT | — | ◇ UNVERIFIED |
| BGBrown's Greens | Brooksville | ME | — | ◇ UNVERIFIED |
| BIBrunnquell Iron Works INC | South Brunswick Twp | NJ | — | ◇ UNVERIFIED |
| BEBrunton Enterprises INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| BFBryant Fuel & Power Systems INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| BIBrzozka Industries INC. | Holbrook | NY | — | ◇ UNVERIFIED |
| BKBuck Kreihs Marine Repair LLC | New Orleans | LA | — | ◇ UNVERIFIED |
| BFBucks Fabricating/hadley | Hadley | PA | — | ◇ UNVERIFIED |
| BEBuffalo Equipment CO | Columbus | NE | — | ◇ UNVERIFIED |
| BSBuffalo Structural Steel, INC. | Titusville | PA | — | ◇ UNVERIFIED |
| BFBuilders Firstsource - Southeast Group, LLC | Shelby | AL | — | ◇ UNVERIFIED |
| BMBuilders Metal Supply | Louisville | KY | — | ◇ UNVERIFIED |
| BSBuilders Steel Company | Kansas City | MO | — | ◇ UNVERIFIED |
| BSBuilders Steel Company | Overland Park | KS | — | ◇ UNVERIFIED |
| BSBuilders Steel Company | North Kansas City | MO | — | ◇ UNVERIFIED |
| BSBuilders Steel INC / 1924 S 49th W Ave Steel Fab Shop | Tulsa | OK | — | ◇ UNVERIFIED |
| BEBuilding Envelope Systems | Plainville | MA | — | ◇ 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 |
| BMBusby Marine and Tank INC | Tacoma | WA | — | ◇ UNVERIFIED |
| BIBusch Iron & Steel CO INC | Knoxville | TN | — | ◇ UNVERIFIED |
| BWB & W Manufacturing Company | Tulsa | OK | — | ◇ UNVERIFIED |
| BSBzi Steel | Cedar City | UT | — | ◇ UNVERIFIED |
| CWC4 Welding INC | Sauk Rapids | MN | — | ◇ UNVERIFIED |
| CMCactus Metalworks INC. | Hesperia | CA | — | ◇ UNVERIFIED |
| CVCactus Varied Industries LLC | Amarillo | TX | — | ◇ UNVERIFIED |
| COCadillac Ornamental Iron Mfg | Oxford | MI | — | ◇ UNVERIFIED |
| CMCajah's Machine - Flexible Products, LLC | Lenoir | NC | — | ◇ UNVERIFIED |
| CICalbrandt INC | Delano | MN | — | ◇ UNVERIFIED |
| CCCal Coast Manufacturing INC | Turlock | CA | — | ◇ UNVERIFIED |
| CCCalculated Custom Metal Works LLC | Oakwood Village | OH | — | ◇ UNVERIFIED |
| CCCal Customs Fabrications LLC | Bakersfield | CA | — | ◇ UNVERIFIED |
| CMCaldwell Manufacturing CO | Kearney | NE | — | ◇ UNVERIFIED |
| CCalfabco | South El Monte | CA | — | ◇ UNVERIFIED |
| CECalifornia Expanded Metals Products CO | Pittsburg | CA | — | ◇ UNVERIFIED |
| CSCalifornia Steel Stair & Rail | Manteca | CA | — | ◇ UNVERIFIED |
| CBCallaway Barge Lines INC | Green Cove Springs | FL | — | ◇ UNVERIFIED |
| CCCalvert City Marine Works LLC | Calvert City | KY | — | ◇ UNVERIFIED |
| CACamblin at 2257, LLC | Rialto | CA | — | ◇ UNVERIFIED |
| CSCamblin Steel Service, Inc. | Phoenix | AZ | — | ◇ UNVERIFIED |
| CSCamblin Steel Service, Inc. | Rocklin | CA | — | ◇ UNVERIFIED |
| CSCamblin Steel Service, INC | Sacramento | CA | — | ◇ UNVERIFIED |
| CPCambridge Press | Somerville | MA | — | ◇ UNVERIFIED |
| CMCamelot Metals | Blaine | MN | — | ◇ UNVERIFIED |
| CBCameron Bridge Works LLC | Elmira | NY | — | ◇ UNVERIFIED |
| CUCami USA INC | Roswell | NM | — | ◇ UNVERIFIED |
| CACampbell and Shaw Steel INC | Marysville | MI | — | ◇ UNVERIFIED |
| CSCampbell & Shaw Steel INC | Detroit | MI | — | ◇ UNVERIFIED |
| CFCamryn Fabrication Dba Pro Weld LLC | Chesterfield | MI | — | ◇ UNVERIFIED |
| CMCamtech Manufacturing Solutions LLC | Science Hill | KY | — | ◇ UNVERIFIED |
| CSCanam Steel Corporation | Jacksonville | FL | — | ◇ UNVERIFIED |
| CSCanam Steel CORP Point of Rocks Plant | Point of Rocks | MD | — | ◇ UNVERIFIED |
| CFCannon Fabrication INC | Corona | CA | — | ◇ UNVERIFIED |
| CWCanron Western Constructors INC | Portland | OR | — | ◇ UNVERIFIED |
| CCCapital Contractors INC | Lincoln | NE | — | ◇ UNVERIFIED |
| CSCapital Steel & Builders Supply INC | Holt | MI | — | ◇ UNVERIFIED |
| CSCapital Steel & Supply | Jefferson City | MO | — | ◇ UNVERIFIED |
| CWCapital Welding & Fabrication, INC. | Thibodaux | LA | — | ◇ UNVERIFIED |
| CICapitol Iron Works, INC. | Sacramento | CA | — | ◇ UNVERIFIED |
| CSCapitol Steel Fabricatiors INC | Commerce | CA | — | ◇ UNVERIFIED |
 Captive-aire Systems, INC. | Slidell | LA | — | ◇ UNVERIFIED |
| CCCareys Construction Company INC | Jackson | MS | — | ◇ UNVERIFIED |
| CICarico INC. | Fredericksburg | VA | — | ◇ UNVERIFIED |
| CLCarolina Laser Cutting, INC. | Greensboro | NC | — | ◇ UNVERIFIED |
