| AMAfco Manufacturing INC. | Covington | KY | — | ◇ UNVERIFIED |
| AKA & K Machine & Fab Shop, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| AMAlabama Metal Industries CORP | Bourbonnais | IL | — | ◇ UNVERIFIED |
| AOAlameda Ornamental Iron | Denver | CO | — | ◇ UNVERIFIED |
| ASAlbany Steel INC | Albany | NY | — | ◇ UNVERIFIED |
| ALAlfa Laval Heat Plt | Lykens | PA | — | ◇ UNVERIFIED |
| AIAllen Iron Works and Supply, INC. | Tarrant | AL | — | ◇ UNVERIFIED |
| AMAllied Metal Industries INC | Newark City | NJ | — | ◇ UNVERIFIED |
| ASAllied Steel CO INC | Riverside | CA | — | ◇ UNVERIFIED |
| AMAll Metal Recycling INC | Springfield | MO | — | ◇ UNVERIFIED |
| ACAlloy Custom Products LLC | Delphi | IN | — | ◇ UNVERIFIED |
| AFAlloy Fabrication INC | Reading | PA | — | ◇ UNVERIFIED |
| ASAlloy Surfaces CO INC | Boothwyn | PA | — | ◇ UNVERIFIED |
| ASAlloy Surfaces CO Inc/aston | Aston | PA | — | ◇ UNVERIFIED |
| AEAll-states Equipment, INC. | Memphis | MO | — | ◇ UNVERIFIED |
| ASAllstate Steel CO | Jacksonville | FL | — | ◇ UNVERIFIED |
| ASAll Steel Construction-malvern Facility | Malvern | AR | — | ◇ UNVERIFIED |
 Alonso & Carus Iron Works INC | Catano | PR | — | ◇ UNVERIFIED |
| ASAlpine Steel Fabricators | Colorado Springs | CO | — | ◇ UNVERIFIED |
| AIAlply INC | De Kalb | MS | — | ◇ UNVERIFIED |
| ASAlro Steel INC (1431154016) | Cincinnati | OH | — | ◇ UNVERIFIED |
| APAlstom Power INC | Easton | PA | — | ◇ UNVERIFIED |
| AIAltrachem INC | Joliet | IL | — | ◇ UNVERIFIED |
| ABAmer Bridge Holding Co/coraopolis | Coraopolis | PA | — | ◇ UNVERIFIED |
| ABAmerican Beryllium Corporation | Tallevast | FL | — | ◇ UNVERIFIED |
| ABAmerican Boiler Works | Arlington | WA | — | ◇ UNVERIFIED |
| ABAmerican Builders & Contractors Supply CO INC Dba American Construction Metals | Lodi | CA | — | ◇ UNVERIFIED |
| ACAmerican Cargo Group Trailers LLC Pa Div | Mcadoo | PA | — | ◇ UNVERIFIED |
 American Fabrication Site | Idaho Falls | ID | — | ◇ UNVERIFIED |
| AIAmerican Idustrial Fabricators INC | Saint Amant | LA | — | ◇ UNVERIFIED |
| ACAmeristeel CORP | Plant City | FL | — | ◇ UNVERIFIED |
| ASAmeron Steel Fabrication Division | Fontana | CA | — | ◇ UNVERIFIED |
| ARAmg Resources CORP | Youngstown | OH | — | ◇ UNVERIFIED |
| AAmico-lakeland | Lakeland | FL | — | ◇ UNVERIFIED |
| ASAnderson Silver Plating CO INC | Elkhart | IN | — | ◇ UNVERIFIED |
| AMAngelini Metal Works | Hialeah | FL | — | ◇ UNVERIFIED |
| AFApex Fabrication & Design INC | Boyertown | PA | — | ◇ UNVERIFIED |
| AHApi Heat Transfer INC | Arcade | NY | — | ◇ UNVERIFIED |
| ARArcher Road Imports | Gainesville | FL | — | ◇ UNVERIFIED |
| AMArchitechtural Metal, INC | Santa Fe | NM | — | ◇ UNVERIFIED |
| ARArchitectural Rails INC | Panama City | FL | — | ◇ UNVERIFIED |
| ASArchitectural Specialty Products INC | Chicago | IL | — | ◇ UNVERIFIED |
| ALArcron LLC | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| ARA & R Ironworks | Tucker | GA | — | ◇ UNVERIFIED |
| AIArtistic Iron Works | Des Moines | IA | — | ◇ UNVERIFIED |
| AQAscension Quality Materials LLC - Prairieville Plant | Prairieville | LA | — | ◇ UNVERIFIED |
| AIAsc, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| ASAshley Steel, INC. | N Charleston | SC | — | ◇ UNVERIFIED |
| AIAs-tech Industries INC | Warren | MI | — | ◇ UNVERIFIED |
| ASAstralloy Steel Products INC | Masury | OH | — | ◇ UNVERIFIED |
| ACAtlas Copco Hurricane LLC | Franklin | IN | — | ◇ UNVERIFIED |
 Atlas Industrial Holdings, Lle (0125042240) | Columbus | OH | — | ◇ UNVERIFIED |
| Atlas Industrial Manufacturing | Clifton City | NJ | — | ◇ UNVERIFIED |
| APAy-mac Precision | Windsor | CO | — | ◇ UNVERIFIED |
| BABabcock and Wilcox Company | West Point | MS | — | ◇ UNVERIFIED |
| BSBae Systems Container Solutions, INC. | Berthoud | CO | — | ◇ UNVERIFIED |
| BBBailey Bridges, INC. | Fort Payne | AL | — | ◇ UNVERIFIED |
| BEBaldor Electric | Clarksville | AR | — | ◇ UNVERIFIED |
| BSBanker Steel South Plant | Lynchburg | VA | — | ◇ UNVERIFIED |
| BOBardons & Oliver, INC. | Solon | OH | — | ◇ UNVERIFIED |
| BFBarfield Fence & Wall | Apopka | FL | — | ◇ UNVERIFIED |
| BSBarker Steel LLC | South Deerfield | MA | — | ◇ UNVERIFIED |
| BSBarker Steel LLC | South Windsor | CT | — | ◇ UNVERIFIED |
| BOBarnett Outdoors LLC | Tarpon Springs | FL | — | ◇ UNVERIFIED |
| BLBay LTD | Billings | MT | — | ◇ UNVERIFIED |
| BLBay LTD | Belle Chasse | LA | — | ◇ UNVERIFIED |
| BLBay LTD - Bay West Yard | Amelia | LA | — | ◇ UNVERIFIED |
| BOBay Offshore LTD - Bay North Yard | Amelia | LA | — | ◇ UNVERIFIED |
| BSBeck Steel | Lubbock | TX | — | ◇ UNVERIFIED |
| BSBell Steel INC. | Chandler | AZ | — | ◇ UNVERIFIED |
| BIBennington Iron Works INC | Bennington | VT | — | ◇ UNVERIFIED |
| BPB&g Powder Coating LLC | Watertown | SD | — | ◇ UNVERIFIED |
| BRBig Rivers Electric Kenneth Coleman Power Plant | Hawesville | KY | — | ◇ UNVERIFIED |
| BRBig R Manufacturing LLC | Greeley | CO | — | ◇ UNVERIFIED |
| BRBig R Mfg LLC Dba Big R Bridge | Greeley | CO | — | ◇ UNVERIFIED |
| BIBil-jax INC | Archbold | OH | — | ◇ UNVERIFIED |
| BFBlazer Fabricating LLC Bessemer Plant | Bessemer | AL | — | ◇ UNVERIFIED |
| BFBlazer Fabricating, LLC (pawnee Plant) | Birmingham | AL | — | ◇ UNVERIFIED |
| BHBlp Holdings | Houston | TX | — | ◇ UNVERIFIED |
| BLB & L Welding & Fabricating | Great Bend | KS | — | ◇ UNVERIFIED |
| BMBmc Metalworks LLC | Columbia | TN | — | ◇ UNVERIFIED |
| BEBonelli Enterprises | Jacksonville | FL | — | ◇ UNVERIFIED |
| BLBoyd Lighting CO | Colorado Springs | CO | — | ◇ UNVERIFIED |
| BWBp Warehouse | Hammond | IN | — | ◇ UNVERIFIED |
| BMBraden Manufacturing | Fort Smith | AR | — | ◇ UNVERIFIED |
| BIBrainerd Industries Incorporated (0857093330) | Miamisburg | OH | — | ◇ UNVERIFIED |
| BIBrandon Iron, INC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| BBrasstech | Santa Ana | CA | — | ◇ UNVERIFIED |
| BCBratton Corporation | Kansas City | MO | — | ◇ UNVERIFIED |
| BSBreed Steering Sys. INC. | Grabill | IN | — | ◇ UNVERIFIED |
| BMBressler Metal Works, INC. | Lebanon | PA | — | ◇ UNVERIFIED |
| BSBristol Steel & Conveyor | Davison | MI | — | ◇ UNVERIFIED |
| BIBri-weld Industries LLC | Auburn | NH | — | ◇ UNVERIFIED |
| BHBroadwind Heavy Industries | Clintonville | WI | — | ◇ UNVERIFIED |
 Brownell Boat Stands | Mattapoisett | MA | — | ◇ UNVERIFIED |
| BRBrown & Root Incorporated Greens Bayou Fabrication Yard | Houston | TX | — | ◇ UNVERIFIED |
| BPBrowns Plating Service | Paducah | KY | — | ◇ UNVERIFIED |
| BIBrunnquell Iron Works INC | South Brunswick Twp | NJ | — | ◇ UNVERIFIED |
| BMBtd Manufacturing INC. | Dawsonville | GA | — | ◇ UNVERIFIED |
| BMBtd Mfg INC | Lakeville | MN | — | ◇ UNVERIFIED |
