| APAlbany Pipe & Nipple Manufacturing, INC. | Green Island | NY | — | ◇ UNVERIFIED |
| AFAlbatross Fabrication LLC | Spirit Lake | ID | — | ◇ UNVERIFIED |
| ACAl Cassettari Enterprises, INC. | Banta | CA | — | ◇ UNVERIFIED |
| ATAlcoa Titanium & Engineered Products | Niles | OH | — | ◇ UNVERIFIED |
| ADAlenco, Div of Reliant Bldg Products | Bryan | TX | — | ◇ UNVERIFIED |
| ASAlfa Steel Construction | Union | NJ | — | ◇ UNVERIFIED |
| AIAlfiniti INC. | Winton | NC | — | ◇ UNVERIFIED |
| ASAli's Steel Fabricating Corp. | Jamaica | NY | — | ◇ UNVERIFIED |
| AGAljo - Gefa Precision Mfg., LLC | Old Bethpage | NY | — | ◇ UNVERIFIED |
| AAAll Around Metal Buildings, LLC | Godley | TX | — | ◇ UNVERIFIED |
| ACAll Custom Fabrications Inc | brooksville | FL | — | ◇ UNVERIFIED |
| ATAllegan Tubular Prod INC | Allegan | MI | — | ◇ UNVERIFIED |
| ARAllegheny Rebar Incorporated | Glassport | PA | — | ◇ UNVERIFIED |
| AMAllen Machine INC. | Montclair | CA | — | ◇ UNVERIFIED |
| ASAllen Sheet Metal INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| ASAllen Steel Fabricating Co* | Columbia | TN | — | ◇ UNVERIFIED |
| ASAlliance Steel & Fabrications, INC. | Manassas Park | VA | — | ◇ UNVERIFIED |
| ACAllison Conveyor Engineering | Allison | PA | — | ◇ UNVERIFIED |
| ARAllison Resources, LLC | Ada | OK | — | ◇ UNVERIFIED |
| AMAll Metal Acquisitions, LLC | Cowarts | AL | — | ◇ UNVERIFIED |
| AMAll Metals LLC | Clackamas | OR | — | ◇ UNVERIFIED |
| AMAll Metals Welding & Fabrication INC | Mount Dora | FL | — | ◇ UNVERIFIED |
| AFAlloy Fabricators, INC. | Alexis | NC | — | ◇ UNVERIFIED |
| AHAlloy Hardfacing - Engineering CO INC | Jordan | MN | — | ◇ UNVERIFIED |
| APAll Pipe Works, Inc | Bluffdale | UT | — | ◇ UNVERIFIED |
| ATAllright Tool Company, INC. | Birmingham | AL | — | ◇ UNVERIFIED |
| ASAll Scenic LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| ASAll Service Machine Shop INC. | Chalmette | LA | — | ◇ UNVERIFIED |
| ASAll Star Threading | Crosby | TX | — | ◇ UNVERIFIED |
| ATAllstate Tower INC | Henderson | KY | — | ◇ UNVERIFIED |
| AWAll Weld Steel INC. | Glenside | PA | — | ◇ UNVERIFIED |
| AIAlmeda INC | Parkersburg | WV | — | ◇ UNVERIFIED |
| AAlnc | San Angelo | TX | — | ◇ UNVERIFIED |
| AWAloha Waste Systems | Puunene | HI | — | ◇ UNVERIFIED |
| AWAloha Welding INC | Hillsboro | OR | — | ◇ UNVERIFIED |
| AFAlpha Fabrication | San Bernardino | CA | — | ◇ UNVERIFIED |
| AIAlpha Irons Works LLC | Rochester | NY | — | ◇ UNVERIFIED |
| ASAlpha Steel CORP | Salem | OR | — | ◇ UNVERIFIED |
| ATAlpine Tool, INC. | Tioga | LA | — | ◇ UNVERIFIED |
| APAl's Plating Company | Fort Worth | TX | — | ◇ UNVERIFIED |
| ASAl Steel Fabricators | Roanoke | VA | — | ◇ UNVERIFIED |
| AFAlternative Fire Protection Services | Lake Elsinore | CA | — | ◇ UNVERIFIED |
| AAlumafold | Whittier | CA | — | ◇ UNVERIFIED |
| AAlumasteel | Salt Lake City | UT | — | ◇ UNVERIFIED |
| ASAluma Steel Mfg INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| AMAluminum Metal Products, INC. | Lubbock | TX | — | ◇ UNVERIFIED |
| AFAmarillo Facility Wind Tower Manufacturing | Amarillo | TX | — | ◇ UNVERIFIED |
| ASAmarillo Steel Fabrication and Machine, INC. | Amarillo | TX | — | ◇ UNVERIFIED |
| ASAmazing Steel | Montclair | CA | — | ◇ UNVERIFIED |
| ASAmazing Steel CORP Dba Amazing Hydraulics Dba Mitc | Montclair | CA | — | ◇ UNVERIFIED |
| ABAmbassador Bridge & Paving Supply LLC | Bourbonnais | IL | — | ◇ UNVERIFIED |
| ASAmbassador Steel Corporation | Newton | IA | — | ◇ UNVERIFIED |
| ASAmbassador Steel Fabrication, LLC | Marion | OH | — | ◇ UNVERIFIED |
| ACA.m. Castle & CO. | Wichita | KS | — | ◇ UNVERIFIED |
| AFAMC Fabrication, Inc. | Las Vegas | NV | — | ◇ UNVERIFIED |
| ASAmco Steel Fabrication, LLC | Elmendorf | TX | — | ◇ UNVERIFIED |
| AMAmdex Metalizing | Scottdale | PA | — | ◇ UNVERIFIED |
| ABAmerican Block Company | Houston | TX | — | ◇ UNVERIFIED |
 American Boa, Incorporated | Cumming | GA | — | ◇ UNVERIFIED |
| ACAmerican Caster CORP | Los Angeles | CA | — | ◇ UNVERIFIED |
| ACAmerican Constructioneers, LLC | Tampa | FL | — | ◇ UNVERIFIED |
| ACAmerican Custom Metal Fabricating, INC. | Green Bay | WI | — | ◇ UNVERIFIED |
| AEAmerican Equipment | Victorville | CA | — | ◇ UNVERIFIED |
| AFAmerican Fabricated Metals, Incorporated | Colonial Heights | VA | — | ◇ UNVERIFIED |
| AHAmerican Highway Technology | Riverbank | CA | — | ◇ UNVERIFIED |
| AIAmerican Industrial Plant Services, INC. | Geismar | LA | — | ◇ UNVERIFIED |
| AIAmerican Investors Dba Reco USA | West Columbia | SC | — | ◇ UNVERIFIED |
| AMAmerican Machine & Conveyor CORP | Oxnard | CA | — | ◇ UNVERIFIED |
| AMAmerican Manufacturing Operations INC. | Toledo | OH | — | ◇ UNVERIFIED |
| AMAmerican Mechanical - Piping INC | Cheraw | SC | — | ◇ UNVERIFIED |
| AMAmerican Metal Fabricators | Modesto | CA | — | ◇ UNVERIFIED |
| AMAmerican Metals | Fresno | CA | — | ◇ UNVERIFIED |
| AMAmerican Metals | West Sacramento | CA | — | ◇ UNVERIFIED |
| AMAmerican Modular Systems, INC. | Manteca | CA | — | ◇ UNVERIFIED |
| APAmerican Pipe Bending & Fabrication CO. INC. | Somerset | NJ | — | ◇ UNVERIFIED |
| APAmerican Pipe Bending INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| ARAmerican Rim Supply | Perris | CA | — | ◇ UNVERIFIED |
| ASAmerican Steel Corporation | Apache Junction | AZ | — | ◇ UNVERIFIED |
| ASAmerican Steel Fabricators, INC. | Melrose Park | IL | — | ◇ UNVERIFIED |
| ASAmerican Steel Rule Die, Inc. | Elkhart | IN | — | ◇ UNVERIFIED |
| ASAmerican Striking Tool, Inc | Wilmington | NC | — | ◇ UNVERIFIED |
| ASAmerican Structures and Design INC. | Sumner | WA | — | ◇ UNVERIFIED |
| ATAmerican Tower Corporation | Somerdale | NJ | — | ◇ UNVERIFIED |
| ATAmerican Tower Corporation | Mount Wilson | CA | — | ◇ UNVERIFIED |
| AWAmerican Warehouse Equipment I | North Hollywood | CA | — | ◇ UNVERIFIED |
| AMAmerifab Mfg LLC | Deer Island | OR | — | ◇ UNVERIFIED |
| ALAmhawk LLC | Coloma | MI | — | ◇ UNVERIFIED |
| AMA M L Simon INC | West Orange | NJ | — | ◇ UNVERIFIED |
| AMA & M Machine & Welding Works, Incorporated | Baytown | TX | — | ◇ UNVERIFIED |
| ACAmmcon CORP | Hillsboro | OR | — | ◇ UNVERIFIED |
| AMA & M Ornamental Iron | Corona | CA | — | ◇ UNVERIFIED |
 Amro Fabricating Corporation | El Monte | CA | — | ◇ UNVERIFIED |
| AEAmtech Environmental CORP | Buffalo | NY | — | ◇ UNVERIFIED |
| AMA.m.w. Metal Works CORP | Hawthorne | NJ | — | ◇ UNVERIFIED |
| AEAnchor Enterprises | Blades | DE | — | ◇ UNVERIFIED |
| AIAndersen Industries - Adelanto | Adelanto | CA | — | ◇ UNVERIFIED |
| ACAnderson Charnesky Structural Steel INC | Yucaipa | CA | — | ◇ UNVERIFIED |
| ACAnderson Charnesky Structural Steel, INC. | Beaumont | CA | — | ◇ UNVERIFIED |
| AWAnderson Welding LLC | Dover | NH | — | ◇ UNVERIFIED |
| ACAnderton Casting LLC | Troy | TX | — | ◇ UNVERIFIED |
