| 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 |
| BNBurnham & Northern Inc | Coldwater | MI | — | ◇ UNVERIFIED |
| BRBurns Rod Welding LLC | Suttons Bay | MI | — | ◇ UNVERIFIED |
| BFBusbar Fabricators, LLC. | Fort Smith | AR | — | ◇ UNVERIFIED |
| BIBusby International | Moses Lake | WA | — | ◇ UNVERIFIED |
| BIBusch Iron & Steel CO INC | Knoxville | TN | — | ◇ UNVERIFIED |
| BCBway Corporation | Sturtevant | WI | — | ◇ UNVERIFIED |
| BFBWC Fabrication | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| BHBw Hvac Operations LLC | Portland | OR | — | ◇ UNVERIFIED |
| BWB & W Manufacturing Company | Tulsa | OK | — | ◇ UNVERIFIED |
| BSBws Specialty Fabrication INC. | Springville | NY | — | ◇ UNVERIFIED |
| CIC23 Investments LLC | Weston | WI | — | ◇ UNVERIFIED |
| CWC4 Welding INC | Sauk Rapids | MN | — | ◇ UNVERIFIED |
| CSCabell Sheet Metal and Roofing, INC. | Ceredo | WV | — | ◇ UNVERIFIED |
| CMCabrac Mfg | San Fernando | CA | — | ◇ UNVERIFIED |
| CMCactus Metalworks INC. | Hesperia | CA | — | ◇ UNVERIFIED |
| CVCactus Varied Industries LLC | Amarillo | TX | — | ◇ UNVERIFIED |
| CSCadet Sheet Metal, INC. | Denver | CO | — | ◇ UNVERIFIED |
| CCCadillac Culvert INC | Cadillac | MI | — | ◇ 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 |
| CMCalco Metal Works, INC. | Lubbock | TX | — | ◇ UNVERIFIED |
| CSCalcor Space Fac INC | Whittier | CA | — | ◇ UNVERIFIED |
| CCCalculated Custom Metal Works LLC | Oakwood Village | OH | — | ◇ UNVERIFIED |
| CCCal Customs Fabrications LLC | Bakersfield | CA | — | ◇ UNVERIFIED |
| CCalfabco | South El Monte | CA | — | ◇ UNVERIFIED |
| CMCalhm Metals INC Dba Weld-kraft | Saint Louis Park | MN | — | ◇ UNVERIFIED |
| CDCalhoun Design and Metalworks | Atlanta | GA | — | ◇ UNVERIFIED |
| CRCaliber Range CORP | Huntington Beach | CA | — | ◇ UNVERIFIED |
| CACalifornia Air Conveying LLC | Paramount | CA | — | ◇ UNVERIFIED |
| CBCalifornia Business Environments, Inc | Morgan Hill | CA | — | ◇ UNVERIFIED |
| CCCalifornia Chassis INC | Anaheim | CA | — | ◇ UNVERIFIED |
| CECalifornia Expanded Metal Products CORP | City of Industry | CA | — | ◇ UNVERIFIED |
| CECalifornia Expanded Metals Products CO | Pittsburg | CA | — | ◇ UNVERIFIED |
| CFCalifornia Fabrication | Canoga Park | CA | — | ◇ UNVERIFIED |
| CSCalifornia Sheet Metal INC | Sacramento | CA | — | ◇ UNVERIFIED |
| CSCalifornia Steel Industries INC | Fontana | CA | — | ◇ UNVERIFIED |
| CSCalifornia Steel Stair & Rail | Manteca | CA | — | ◇ UNVERIFIED |
| CECallac Enterprises LLC | Portland | OR | — | ◇ UNVERIFIED |
 Cal Sierra Pipe LLC | Stockton | CA | — | ◇ UNVERIFIED |
| CCCalvert City Marine Works LLC | Calvert City | KY | — | ◇ UNVERIFIED |
| CICalvin Industries, LLC | Skiatook | OK | — | ◇ 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 |
| CCCambria Csd Water Dept. - Richard Street | Cambria | CA | — | ◇ UNVERIFIED |
| CPCambridge Press | Somerville | MA | — | ◇ UNVERIFIED |
| CMCamelot Metals | Blaine | MN | — | ◇ UNVERIFIED |
