| ABAndrew B. Duffy, INC. | West Deptford | NJ | — | ◇ UNVERIFIED |
| ASAndron Stainless CORP | Columbia | SC | — | ◇ UNVERIFIED |
| AEAndros Engineering Corporation | Paso Robles | CA | — | ◇ UNVERIFIED |
| AMAndy Maylish Fabrication INC. | Denver | NC | — | ◇ UNVERIFIED |
| ACAnel Corporation | Carroll County | MS | — | ◇ UNVERIFIED |
| AGAngell & Giroux INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| AAAnn Arbor Fabrication INC | Dexter | MI | — | ◇ UNVERIFIED |
| AIAnnco Industrial Metal Fabricator | Totowa | NJ | — | ◇ UNVERIFIED |
| AIAnnco Industrial Metal Fabricator | Wallington | NJ | — | ◇ UNVERIFIED |
| AMAnsam Metals CORP | Baltimore | MD | — | ◇ UNVERIFIED |
| AMAnson Mechanical Piping, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| ASAntennamast Systems | Cascade | VA | — | ◇ UNVERIFIED |
| ASAnthem Steel Group Inc | Salt Lake City | UT | — | ◇ UNVERIFIED |
| AMAnthony Mfg CORP | Azusa | CA | — | ◇ UNVERIFIED |
| AMAntietam Metals, LLC | Williamsport | MD | — | ◇ UNVERIFIED |
| ACAnvil Craft Corporation | Easton | PA | — | ◇ UNVERIFIED |
| ASAnvil Steel Engineering Inc. | Taunton | MA | — | ◇ UNVERIFIED |
| AMAnzaldua Mechanical, INC. | Harlingen | TX | — | ◇ UNVERIFIED |
| AFApex Fabrication, INC. | Macclenny | FL | — | ◇ UNVERIFIED |
| APApex Piping Systems, INC. | Wilmington | DE | — | ◇ UNVERIFIED |
| AIApn INC | Caledonia | MN | — | ◇ UNVERIFIED |
| ACApnivex CORP Dba Comm-fab | Chino | CA | — | ◇ UNVERIFIED |
| ASApollo Steel CORP. | Niagara Falls | NY | — | ◇ UNVERIFIED |
| AEApplied Energy Technologies, INC. | Maumee | OH | — | ◇ UNVERIFIED |
| AIAqua-Doc International, LTD. | Big Bend | WI | — | ◇ UNVERIFIED |
| ACAquamatic Cover Systems | Gilroy | CA | — | ◇ UNVERIFIED |
| ASAquaturbo Systems, INC | Springdale | AR | — | ◇ UNVERIFIED |
| APAransas Pass Site | Aransas Pass | TX | — | ◇ UNVERIFIED |
| ASArcadia Security and Patrol | Vancouver | WA | — | ◇ UNVERIFIED |
| AIArchitectural & Industrial Metal Fabrication | Roswell | GA | — | ◇ UNVERIFIED |
| AMArchitectural Metal Solutions | Austell | GA | — | ◇ UNVERIFIED |
| AMArchitectural Metal Supply Inc | Richmond | VT | — | ◇ UNVERIFIED |
| AMArchitectural Metal Supply Inc. | Richmond | VT | — | ◇ UNVERIFIED |
| ASArchitectural Steel & Aluminum Products, INC. | Dallas | GA | — | ◇ UNVERIFIED |
| ASArchitectural & Structural Steel Co, INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| AIArclight Industries LLC | Bethel Park | PA | — | ◇ UNVERIFIED |
| AIArclight Industries LLC | Venetia | PA | — | ◇ UNVERIFIED |
| AWArcosa Wind Towers, INC. - Newton | Newton | IA | — | ◇ UNVERIFIED |
| AIArc-rite, INC. | Palatka | FL | — | ◇ UNVERIFIED |
| ASArc Services | Roseville | MN | — | ◇ UNVERIFIED |
| ARA & R Iron Works, INC. | Conshohocken | PA | — | ◇ UNVERIFIED |
| AMAristotle Metal Works | Lawrenceville | GA | — | ◇ UNVERIFIED |
| AEArizona Equipment Fabrication L.l.c. | Flagstaff | AZ | — | ◇ UNVERIFIED |
| AFArk Fabricators, INC. | Augusta | GA | — | ◇ UNVERIFIED |
| AIArlington Iron Works | Manassas | VA | — | ◇ UNVERIFIED |
| ASArmetco Systems LLC | Fort Worth | TX | — | ◇ UNVERIFIED |
| ABAroutioun Bermperian | Sun Valley | CA | — | ◇ UNVERIFIED |
| AIArrowhead Industries INC | Afton | MI | — | ◇ UNVERIFIED |
| ACArt Chiapa Welding | Porterville | CA | — | ◇ UNVERIFIED |
| AFArtisanz Fabrication | Plainfield | IN | — | ◇ UNVERIFIED |
| AFAsap Fabrication INC. | Plant City | FL | — | ◇ UNVERIFIED |
| ASAsap Steel | Warren | MI | — | ◇ UNVERIFIED |
| AVAsa V. Peugh, INC. | Seaford | DE | — | ◇ UNVERIFIED |
| AFAsc-es: Federalsburg | Federalsburg | MD | — | ◇ UNVERIFIED |
| APAsc Profiles INC | Salem | OR | — | ◇ UNVERIFIED |
| AIAshworth Industries, L.l.c. | Prairieville | LA | — | ◇ UNVERIFIED |
| AWAspen Welding LLC | Rifle | CO | — | ◇ UNVERIFIED |
| ASAsp Services INC. | Selinsgrove | PA | — | ◇ UNVERIFIED |
| ARAssociated Rubber & Mechanical INC | Magna | UT | — | ◇ 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 |
| AIAtkore International | Harvey | IL | — | ◇ UNVERIFIED |
| ABAtlantic Bolt, Incorporated | Charlotte | NC | — | ◇ UNVERIFIED |
| AEAtlantic Enterprises | Holly Hill | FL | — | ◇ UNVERIFIED |
| AFAtlantic Fabrication and Design, LLC | Oklahoma City | OK | — | ◇ 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 |
| AEAvalos Enterprises INC. | New Plymouth | ID | — | ◇ UNVERIFIED |
| AFAwc Frac Valves | Conroe | TX | — | ◇ UNVERIFIED |
| ASAzad Steel, INC. | North Hollywood | CA | — | ◇ UNVERIFIED |
| AIAztec Industries, INC. | Humble | TX | — | ◇ UNVERIFIED |
| BABaader and Johnson Equipment | Kansas City | KS | — | ◇ UNVERIFIED |
| BEBaco Enterprises, Inc. | Bronx | NY | — | ◇ UNVERIFIED |
| BCBadlands Capital Holdings LLC | Springtown | TX | — | ◇ UNVERIFIED |
| BGBah Group, INC. | Pasadena | TX | — | ◇ UNVERIFIED |
| BCBaker Coupling CO INC | Vernon | CA | — | ◇ 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 |
| 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 | Milford | MA | — | ◇ UNVERIFIED |
| BIBarksdale INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| BWBarndt's Welding, INC. | Cotati | CA | — | ◇ UNVERIFIED |
| BSBarnett Steel Fabrication, LLC | Irondale | AL | — | ◇ UNVERIFIED |
| BSBarnett Steel Fabrication, LLC | Murfreesboro | TN | — | ◇ UNVERIFIED |
