| ARA & R Iron Works, INC. | Conshohocken | PA | — | ◇ UNVERIFIED |
| AMAristotle Metal Works | Lawrenceville | GA | — | ◇ UNVERIFIED |
| AEArizona Equipment Fabrication L.l.c. | Flagstaff | AZ | — | ◇ UNVERIFIED |
| ALArktura LLC | Gardena | CA | — | ◇ UNVERIFIED |
| AIArlington Iron Works | Manassas | VA | — | ◇ UNVERIFIED |
| ASArmetco Systems LLC | Fort Worth | TX | — | ◇ UNVERIFIED |
| ABAroutioun Bermperian | Sun Valley | CA | — | ◇ UNVERIFIED |
| ACArt Chiapa Welding | Porterville | CA | — | ◇ UNVERIFIED |
| ALArteferro LLC | Plainfield | NJ | — | ◇ UNVERIFIED |
| AFArtisan Forge Metal Works LLC | Eau Claire | WI | — | ◇ UNVERIFIED |
| AFArtisanz Fabrication | Plainfield | IN | — | ◇ UNVERIFIED |
| AIArtistic Iron INC | Woodland | WA | — | ◇ UNVERIFIED |
| AOArtistic Ornamental Iron Works, INC. | Athens | GA | — | ◇ UNVERIFIED |
| AWArtistic Welding Work Shop | Los Angeles | CA | — | ◇ UNVERIFIED |
| AArtistwelder | Hooper | UT | — | ◇ UNVERIFIED |
| AAArts Anvil Iron Works INC | Gardena | CA | — | ◇ UNVERIFIED |
| ASAsap Steel | Warren | MI | — | ◇ UNVERIFIED |
| AVAsa V. Peugh, INC. | Seaford | DE | — | ◇ UNVERIFIED |
| APAsc Profiles INC | Salem | OR | — | ◇ UNVERIFIED |
| APAsc Profiles INC Dba Aep Span | Fontana | CA | — | ◇ UNVERIFIED |
| AIAsf Ironworks INC | Eugene | OR | — | ◇ UNVERIFIED |
| AAAsheer Akram LLC | Kansas City | KS | — | ◇ UNVERIFIED |
| 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 |
 Atlas Industrial Holdings, LLC | Pontiac | MI | — | ◇ UNVERIFIED |
| ARAtlas Road Extension Improvements Project | Richmond | CA | — | ◇ 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 |
| 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 | 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 |
| BSBarker Steel, LLC | Milford | MA | — | ◇ UNVERIFIED |
| BWBarndt's Welding, INC. | Cotati | CA | — | ◇ UNVERIFIED |
| BABarnett Aldon Ironworks | Albuquerque | NM | — | ◇ 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 |
| 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 |
