| AIAshworth Industries, L.l.c. | Prairieville | LA | — | ◇ UNVERIFIED |
| AWAspen Welding LLC | Rifle | CO | — | ◇ UNVERIFIED |
| ASAsp Services INC. | Selinsgrove | PA | — | ◇ UNVERIFIED |
 Associated Steel Fabricators INC. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| Associated Steel Fabricators, INC. | Houston | TX | — | ◇ UNVERIFIED |
| ASAssociated Steel Workers Fabrication Shop | Kapolei | HI | — | ◇ UNVERIFIED |
| AOAssurance Operations Corporation | Lawrenceburg | TN | — | ◇ UNVERIFIED |
| APATD Properties, LLC | Pioneer | OH | — | ◇ UNVERIFIED |
| ABAtlantic Bolt, Incorporated | Charlotte | NC | — | ◇ UNVERIFIED |
| AEAtlantic Enterprises | Holly Hill | FL | — | ◇ UNVERIFIED |
| ARAtlantic Railing, INC. | Newport News | VA | — | ◇ UNVERIFIED |
| ASAtlantic Spars and Rigging INC | Annapolis | MD | — | ◇ UNVERIFIED |
| AFAtlas Fabrication,inc. | Abbeville | LA | — | ◇ UNVERIFIED |
| AIAuburn Industries | Auburn Hills | MI | — | ◇ UNVERIFIED |
 Aura Fabricators Inc | Fergus Falls | MN | — | ◇ UNVERIFIED |
 Automatic Access Gates, LLC | Baton Rouge | LA | — | ◇ UNVERIFIED |
| ALAuvang LLC | Newbury Park | CA | — | ◇ UNVERIFIED |
| AEAvalos Enterprises INC. | New Plymouth | ID | — | ◇ UNVERIFIED |
| ATAxial to Terminal LLC | Richmond | CA | — | ◇ UNVERIFIED |
| AIAxsom Iron Works, LLC | Siler City | NC | — | ◇ UNVERIFIED |
| ADA.y.'s Designs in Iron INC | San Diego | CA | — | ◇ UNVERIFIED |
| ASAzad Steel, INC. | North Hollywood | CA | — | ◇ UNVERIFIED |
| AZA Zahner Company | Las Vegas | NV | — | ◇ UNVERIFIED |
| AAAzmark Aero Systems, LLC | Gilbert | AZ | — | ◇ UNVERIFIED |
| AAAztec Artistic Productions LTD | Portland | OR | — | ◇ UNVERIFIED |
| AIAztec Industries, INC. | Humble | TX | — | ◇ UNVERIFIED |
| AOAztlan Ornamental Iron Fab | Stockton | CA | — | ◇ UNVERIFIED |
| BABaader and Johnson Equipment | Kansas City | KS | — | ◇ UNVERIFIED |
| BIBachiller Iron Works, INC. | Miami | FL | — | ◇ UNVERIFIED |
| BEBaco Enterprises, Inc. | Bronx | NY | — | ◇ UNVERIFIED |
| BCBadlands Capital Holdings LLC | Springtown | TX | — | ◇ UNVERIFIED |
| BIBakker's Ironworks INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| BIBalco INC. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| BCBaldwin Custom Welding & Designs LLC | Bend | OR | — | ◇ UNVERIFIED |
| BCBaldwin Custom Welding & Designs LLC | Bend | OR | — | ◇ UNVERIFIED |
| BCBaltimore City Dept. of Housing | Baltimore | MD | — | ◇ UNVERIFIED |
 Baltimore Fabrication, LLC | Baltimore | MD | — | ◇ UNVERIFIED |
| BSBaltimore Steel Erectors LLC | White Marsh | MD | — | ◇ UNVERIFIED |
| BSBambacigno Steel Company INC | Modesto | CA | — | ◇ UNVERIFIED |
| BGBanker Grating, LLC | Milwaukee | WI | — | ◇ 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 | Lakeside | CA | — | ◇ UNVERIFIED |
| BMBapko Metal INC | Orange | CA | — | ◇ UNVERIFIED |
| BABarbara Adams | Jessup | MD | — | ◇ UNVERIFIED |
| 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 CO | Goshen | IN | — | ◇ 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 |
| BBBend Bronze INC | Estacada | OR | — | ◇ UNVERIFIED |
| BIBendco INC. | Pasadena | TX | — | ◇ UNVERIFIED |
| BMBender Mechanical Services INC | Lebanon | OR | — | ◇ UNVERIFIED |
