| BIBarca Iron Work | Los Angeles | CA | — | ◇ UNVERIFIED |
| BSBare Steel INC | Santee | CA | — | ◇ UNVERIFIED |
| BSBarker Steel, LLC | Milford | MA | — | ◇ UNVERIFIED |
| BWBarndt's Welding, INC. | Cotati | CA | — | ◇ UNVERIFIED |
| BABarnett Aldon Ironworks | Albuquerque | NM | — | ◇ UNVERIFIED |
| BSBarnett Steel Fabrication, LLC | Irondale | AL | — | ◇ UNVERIFIED |
| BSBarnett Steel Fabrication, LLC | Murfreesboro | TN | — | ◇ UNVERIFIED |
| BSBarro Structural Steel | Ceres | CA | — | ◇ UNVERIFIED |
| BTBar T Equipment Service, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| BLBarton Leasing, INC. | Aurora | CO | — | ◇ UNVERIFIED |
 Basden Steel-oklahoma, LLC | Claremore | OK | — | ◇ UNVERIFIED |
| BSBase Specialties INC | Farmington | MN | — | ◇ UNVERIFIED |
| BSBA Steel LLC | Baltimore | MD | — | ◇ UNVERIFIED |
| BMBattle Mfg CORP. | San Jose | CA | — | ◇ UNVERIFIED |
| BIBauer Industries LLC Dba Bauer Custom Welding | Saint Paul | MN | — | ◇ UNVERIFIED |
| BIBawco Industrial INC. | Pearland | TX | — | ◇ UNVERIFIED |
| BBBax-steel Building, INC. | Baxley | GA | — | ◇ UNVERIFIED |
| BABay Area Machinist | Hayward | CA | — | ◇ UNVERIFIED |
| BCBay City Shovels INC | Au Gres | MI | — | ◇ UNVERIFIED |
| BOBay Ornamental Iron & Welding | Costa Mesa | CA | — | ◇ UNVERIFIED |
| BFBayou Fabricated Products, INC. | Port Allen | LA | — | ◇ UNVERIFIED |
| BFBayou Fabricators and Machine Works, INC | Plaquemine | LA | — | ◇ UNVERIFIED |
| BSBay Steel Co., INC. | Halifax | MA | — | ◇ UNVERIFIED |
| BVBay View Railing & Ornamental, INC. | Saint Francis | WI | — | ◇ UNVERIFIED |
| BIBBCB Investco, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| BMB&B Metal Works, LLC | Carbon | TX | — | ◇ UNVERIFIED |
| BSBcb Stainless-steel Custom Work INC. | Brooklyn | NY | — | ◇ UNVERIFIED |
| BIBci INC | Omaha | NE | — | ◇ UNVERIFIED |
| BCB C Industrial Sales, LLC | West Monroe | LA | — | ◇ UNVERIFIED |
| BIBc Iron Designs INC. | Fairfield | CA | — | ◇ UNVERIFIED |
| BHBCK Holdings LLC | Marysville | WA | — | ◇ UNVERIFIED |
| BCB & C Metals | Caledonia | MO | — | ◇ UNVERIFIED |
| BCB & C Welding and Iron Works | Garden Grove | CA | — | ◇ UNVERIFIED |
| BDB & D Welding & Fabrication INC. | Tremonton | UT | — | ◇ UNVERIFIED |
| BEB E Aerospace Services Divisio | Orange | CA | — | ◇ UNVERIFIED |
| BCBear Creek Fabrication LLC | Bear Creek | NC | — | ◇ UNVERIFIED |
| BOBear Ornamental, INC. | Saint George | UT | — | ◇ UNVERIFIED |
| BVBear Valley Fabricators & Steel Supply INC | Lucerne Valley | CA | — | ◇ UNVERIFIED |
| BCBeauty Craft Metal Fabricators | Bedford Heights | OH | — | ◇ UNVERIFIED |
| BRBec-don Ringgold, INC. | Ringgold | GA | — | ◇ UNVERIFIED |
| BDBeck Developers, LLC | Sterling | VA | — | ◇ UNVERIFIED |
| BBBecker Boiler Co., INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| BSBeckley Steel, INC. | Crab Orchard | WV | — | ◇ UNVERIFIED |
| BJBee Jay Iron INC | Englewood | CO | — | ◇ UNVERIFIED |
| BMBegneaud Manufacturing INC | Scott | LA | — | ◇ UNVERIFIED |
| BMBehlen Manufacturing | Mc Gregor | TX | — | ◇ UNVERIFIED |
| BMBehlen Manufacturing CO | Goshen | IN | — | ◇ UNVERIFIED |
| BWBekos Welding INC | Canby | OR | — | ◇ UNVERIFIED |
| BEBell Equipment, LLC | Inverness | MS | — | ◇ UNVERIFIED |
| BIBell INC. | Inverness | MS | — | ◇ UNVERIFIED |
| BSBellis Steel CO INC | Chatsworth | CA | — | ◇ UNVERIFIED |
| BABellota Agrisolutions and Tools Usa, LLC | Milan | IL | — | ◇ UNVERIFIED |
| BWBen-co Welding, INC. Dba Benco Welding Company, INC. | Winder | GA | — | ◇ UNVERIFIED |
| BBBend Bronze INC | Estacada | OR | — | ◇ UNVERIFIED |
| BIBendco INC. | Pasadena | TX | — | ◇ UNVERIFIED |
| BMBender Mechanical Services INC | Lebanon | OR | — | ◇ UNVERIFIED |
| BSBending Specialists, LLC | Lockport | IL | — | ◇ UNVERIFIED |
| BIBenecor, INC. | Wichita | KS | — | ◇ UNVERIFIED |
| BHBen Hur Steel Worx | Saint Louis | MO | — | ◇ UNVERIFIED |
| BFBenicia Foundry & Iron Works | Benicia | CA | — | ◇ UNVERIFIED |
| BWBenitez Wrought Iron INC | Sylmar | CA | — | ◇ UNVERIFIED |
| BCBenjamin C Lavoie | Buzzards Bay | MA | — | ◇ UNVERIFIED |
| BFBenjamin Fabricators, LLC | Silver Spring | MD | — | ◇ UNVERIFIED |
| BMBennett Machine and Fabrication | Anamosa | IA | — | ◇ UNVERIFIED |
| BSBennett Steel Fabrication, INC. | Sapulpa | OK | — | ◇ UNVERIFIED |
| BIBensalem Ii Enterprises | Bensalem | PA | — | ◇ UNVERIFIED |
| BSBenson Steel Fabricators | Saugerties | NY | — | ◇ UNVERIFIED |
| BGBergeron Group, INC. | Joliet | IL | — | ◇ UNVERIFIED |
| BSBerger Steel Corporation | Mcclellan | CA | — | ◇ UNVERIFIED |
| BFBergh's Fabricating INC | Willmar | MN | — | ◇ UNVERIFIED |
| BSBesco Steel Supply of Georgia, INC. | Winder | GA | — | ◇ UNVERIFIED |
| BIBesler Industries INC | Cambridge | NE | — | ◇ UNVERIFIED |
| BMBess Materials Testing and Inspection INC | Hayward | CA | — | ◇ UNVERIFIED |
| BFBest Fence Company | Mulberry | FL | — | ◇ UNVERIFIED |
| BIBest Iron Works | San Bernardino | CA | — | ◇ UNVERIFIED |
 Best Ironworks and Screens, INC. | Fort Bliss | TX | — | ◇ UNVERIFIED |
| BFBeta Fence USA | Ennis | TX | — | ◇ UNVERIFIED |
| BIBethesda Iron Works, INC. | Rockville | MD | — | ◇ UNVERIFIED |
| BWBet-mac Wilson Steel, INC. | Creedmoor | NC | — | ◇ UNVERIFIED |
| BBBetter Burglar Bars INC. | Houston | TX | — | ◇ UNVERIFIED |
| BCBevel Corporation | Sulphur | LA | — | ◇ UNVERIFIED |
| BSBeyond Steel Fabrication LLC | Redlands | CA | — | ◇ UNVERIFIED |
| BSBeyond Steel Fabrication, LLC Dba Mission Steel Fabrication | Mentone | CA | — | ◇ UNVERIFIED |
| BEBfm Energy Products CORP | Santa Ana | CA | — | ◇ UNVERIFIED |
| BIBhp, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| BOBianchi Orchard Systems, INC. | Gridley | CA | — | ◇ UNVERIFIED |
| B3Big 3 Precision Products, INC. | Centralia | IL | — | ◇ UNVERIFIED |
| BIB I G Enter. INC | South El Monte | CA | — | ◇ UNVERIFIED |
| BOBig Orange Gate CO LLC | Albany | KY | — | ◇ UNVERIFIED |
| BWBig W Sales | Stockton | CA | — | ◇ UNVERIFIED |
| BWBillington Welding & Mfg. | Modesto | CA | — | ◇ UNVERIFIED |
| BCBills Custom Fab | Alma | MI | — | ◇ UNVERIFIED |
| BCBills Custom Fab | East Lansing | MI | — | ◇ UNVERIFIED |
| BWBilly's Welding and Repair Service, INC. | Erwin | NC | — | ◇ UNVERIFIED |
| BPBiofab Products, INC. | Butler | PA | — | ◇ UNVERIFIED |
| BMBiopower Manufacturing LLC | Foley | AL | — | ◇ UNVERIFIED |
| BSBishop Steel Co, INC. | East Point | GA | — | ◇ UNVERIFIED |
| BIBison Iron & Step | Buffalo | NY | — | ◇ UNVERIFIED |
| BHBitemark Holdings, LLC | Aurora | IL | — | ◇ UNVERIFIED |
| BCBkb Construction LP | Los Angeles | CA | — | ◇ UNVERIFIED |
