| BSBae Systems Container Solutions, INC. | Berthoud | CO | — | ◇ UNVERIFIED |
| BBBailey Bridges, INC. | Fort Payne | AL | — | ◇ UNVERIFIED |
| BCBaldwin Custom Welding & Designs LLC | Bend | OR | — | ◇ UNVERIFIED |
| BCBaldwin Custom Welding & Designs LLC | Bend | OR | — | ◇ UNVERIFIED |
 Baltimore Fabrication, LLC | Baltimore | MD | — | ◇ UNVERIFIED |
| BSBambacigno Steel Company INC | Modesto | CA | — | ◇ UNVERIFIED |
| BSBanker Steel South Plant | Lynchburg | VA | — | ◇ UNVERIFIED |
| BMBanks Manufacturing Company | Grafton | OH | — | ◇ UNVERIFIED |
| BIBanner Industries -windsor | Windsor | CT | — | ◇ UNVERIFIED |
| BIBanta's Iron Work INC. | Andover | NJ | — | ◇ UNVERIFIED |
| BMBapko Metal INC | Orange | CA | — | ◇ UNVERIFIED |
| BMBapko Metal INC | Orange | CA | — | ◇ UNVERIFIED |
| BABarbara Adams | Jessup | MD | — | ◇ UNVERIFIED |
| BSBare Steel INC | Santee | CA | — | ◇ UNVERIFIED |
| BSBarker Steel LLC | South Windsor | CT | — | ◇ UNVERIFIED |
| BSBarker Steel, LLC | Milford | MA | — | ◇ UNVERIFIED |
| BWBarndt's Welding, INC. | Cotati | CA | — | ◇ UNVERIFIED |
| BSBarnett Steel Fabrication, LLC | Murfreesboro | TN | — | ◇ UNVERIFIED |
| BSBarnett Steel Fabrication, LLC | Irondale | AL | — | ◇ 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 |
| BSBA Steel LLC | Baltimore | MD | — | ◇ UNVERIFIED |
| BMBattle Mfg CORP. | San Jose | CA | — | ◇ 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 |
| BLBay LTD | Belle Chasse | LA | — | ◇ UNVERIFIED |
| BFBayou Fabricated Products, INC. | Port Allen | LA | — | ◇ UNVERIFIED |
| BFBayou Fabricators and Machine Works, INC | Plaquemine | LA | — | ◇ 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 |
| BHBCK Holdings LLC | Marysville | WA | — | ◇ UNVERIFIED |
| BDB & D Welding & Fabrication INC. | Tremonton | UT | — | ◇ UNVERIFIED |
| BCBear Creek Fabrication LLC | Bear Creek | NC | — | ◇ UNVERIFIED |
| BVBear Valley Fabricators & Steel Supply INC | Lucerne Valley | CA | — | ◇ 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 |
| BMBegneaud Manufacturing INC | Scott | LA | — | ◇ UNVERIFIED |
| BWBekos Welding INC | Canby | OR | — | ◇ UNVERIFIED |
| BEBell Equipment, LLC | Inverness | MS | — | ◇ UNVERIFIED |
| BSBellis Steel CO INC | Chatsworth | CA | — | ◇ UNVERIFIED |
| BWBen-co Welding, INC. Dba Benco Welding Company, INC. | Winder | GA | — | ◇ 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 |
| BCBenjamin C Lavoie | Buzzards Bay | MA | — | ◇ UNVERIFIED |
| BFBenjamin Fabricators, LLC | Silver Spring | MD | — | ◇ UNVERIFIED |
| BSBennett Steel Fabrication, INC. | Sapulpa | OK | — | ◇ UNVERIFIED |
| BIBennington Iron Works INC | Bennington | VT | — | ◇ 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 |
| BMBess Materials Testing and Inspection INC | Hayward | CA | — | ◇ 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 |
| BIBhp, INC. | Milwaukee | WI | — | ◇ 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 |
| BRBig Rivers Electric Kenneth Coleman Power Plant | Hawesville | KY | — | ◇ UNVERIFIED |
| BRBig R Manufacturing LLC | Greeley | CO | — | ◇ 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 |
| BCBkb Construction LP | Los Angeles | CA | — | ◇ UNVERIFIED |
| BDBlack Dog Consulting INC Dba Ch Yarber Constructio | Cheyenne | WY | — | ◇ UNVERIFIED |
| BEBlackhawk Enterprises Company | San Marcos | TX | — | ◇ UNVERIFIED |
| BWBlackwell's Welding, INC. | Jessup | MD | — | ◇ UNVERIFIED |
| BFBlazer Fabricating LLC Bessemer Plant | Bessemer | AL | — | ◇ UNVERIFIED |
| BSBlazing Structure Steel INC | Riverside | CA | — | ◇ UNVERIFIED |
| BLB Line Systems Incorporated | Norcross | GA | — | ◇ UNVERIFIED |
| BLB & L Steel Fabrications, INC. | Prairieville | LA | — | ◇ UNVERIFIED |
| BTBlt Tanks, L.l.c. | Corinth | MS | — | ◇ UNVERIFIED |
| BRBlue Ridge Fabricators, INC. | Roanoke | VA | — | ◇ UNVERIFIED |
| BWBluewater Welding and Fabrication, LLC. | Dennisville | NJ | — | ◇ UNVERIFIED |
| BEBlum Enterprises, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| BFBMC Fabrication & Erection, Inc | Spanish Fork | UT | — | ◇ UNVERIFIED |
| BMBmc Metalworks LLC | Columbia | TN | — | ◇ UNVERIFIED |
| BMBmg Metals INC | Richmond | VA | — | ◇ UNVERIFIED |
| BMB&m Metal Doors & Frames, INC. | Kenner | LA | — | ◇ UNVERIFIED |
