| 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 |
| ACAtlas Copco Hurricane LLC | Franklin | IN | — | ◇ UNVERIFIED |
| AFAtlas Fabrication,inc. | Abbeville | LA | — | ◇ UNVERIFIED |
 Atlas Industrial Holdings, LLC | Pontiac | MI | — | ◇ UNVERIFIED |
| Atlas Industrial Holdings, Lle (0125042240) | Columbus | OH | — | ◇ UNVERIFIED |
| Atlas Industrial Manufacturing | Clifton City | NJ | — | ◇ UNVERIFIED |
| ASAttala Steel Industries LLC | Kosciusko | MS | — | ◇ UNVERIFIED |
| AIAuburn Industries | Auburn Hills | MI | — | ◇ UNVERIFIED |
 Aura Fabricators Inc | Fergus Falls | MN | — | ◇ UNVERIFIED |
| AMAus Manufacturing Company LLC | Bonifay | FL | — | ◇ 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 |
| APAy-mac Precision | Windsor | CO | — | ◇ 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 |
| BABabcock and Wilcox Company | West Point | MS | — | ◇ UNVERIFIED |
| BIBachiller Iron Works, INC. | Miami | FL | — | ◇ UNVERIFIED |
| BEBaco Enterprises, Inc. | Bronx | NY | — | ◇ UNVERIFIED |
| BCBadlands Capital Holdings LLC | Springtown | TX | — | ◇ UNVERIFIED |
| BSBae Systems Container Solutions, INC. | Berthoud | CO | — | ◇ UNVERIFIED |
| BBBailey Bridges, INC. | Fort Payne | AL | — | ◇ 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 |
| 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 |
| BMBapko Metal INC | Lakeside | CA | — | ◇ UNVERIFIED |
| BABarbara Adams | Jessup | MD | — | ◇ UNVERIFIED |
| BIBarca Iron Work | Los Angeles | CA | — | ◇ UNVERIFIED |
| BSBare Steel INC | Santee | CA | — | ◇ UNVERIFIED |
| BFBarfield Fence & Wall | Apopka | FL | — | ◇ UNVERIFIED |
| BSBarker Steel LLC | South Windsor | CT | — | ◇ UNVERIFIED |
| BSBarker Steel, LLC | Milford | MA | — | ◇ UNVERIFIED |
| BWBarndt's Welding, INC. | Cotati | CA | — | ◇ UNVERIFIED |
| BABarnett Aldon Ironworks | Albuquerque | NM | — | ◇ UNVERIFIED |
| BOBarnett Outdoors LLC | Tarpon Springs | FL | — | ◇ 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 |
| 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 |
| BWBauer Welding & Metal Fabricators | 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 |
| BLBay LTD | Belle Chasse | LA | — | ◇ UNVERIFIED |
| BLBay LTD | Billings | MT | — | ◇ 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 |
| BFB.D.A. Fabrications, Inc. | Bensenville | IL | — | ◇ UNVERIFIED |
| BSB.D.J. Sanchez Investments LLC | Gardena | CA | — | ◇ UNVERIFIED |
| BDB & D Welding & Fabrication INC. | Tremonton | UT | — | ◇ UNVERIFIED |
| BMBeacon Metal Fabricators, INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| BEB E Aerospace Services Divisio | Orange | CA | — | ◇ UNVERIFIED |
