| KSKearny Smelting & Refining CORP | Kearny | NJ | — | ◇ UNVERIFIED |
| KPKenwal Pickling, LLC | Dearborn | MI | — | ◇ UNVERIFIED |
| KSKing Steel Corporation | Norfolk | NE | — | ◇ UNVERIFIED |
| KMKloeckner Metals | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| KMKloeckner Metals Corporation | Fontana | CA | — | ◇ UNVERIFIED |
| KMKloeckner Metals, INC | Tulare | CA | — | ◇ UNVERIFIED |
| KSKnightsbridge Steel LLC | Hialeah | FL | — | ◇ UNVERIFIED |
| KWKokoku Wire Industries Corporation | South Bend | IN | — | ◇ UNVERIFIED |
| KOK O Steel construction Inc | North Scituate | RI | — | ◇ UNVERIFIED |
| KWKrazy Wills | Rockford | IL | — | ◇ UNVERIFIED |
| KWKris-tech Wire CO INC | Rome | NY | — | ◇ UNVERIFIED |
| KFKuhn Fabricating Inc. | Lorain | OH | — | ◇ UNVERIFIED |
| KFKupferle Foundry Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| KIKuprion, INC. | Fremont | CA | — | ◇ UNVERIFIED |
| LCLake Copper Conductors Hoffman Building | Elkhart | IN | — | ◇ UNVERIFIED |
| LCLake Copper Conductors LLC | Elkhart | IN | — | ◇ UNVERIFIED |
| LLLamar, LLC | Lumberton | MS | — | ◇ UNVERIFIED |
| LQLa Quinta Plant | Portland | TX | — | ◇ UNVERIFIED |
| LILarco Industries INC | San Jose | CA | — | ◇ UNVERIFIED |
| LSLavin & Sons | North Chicago | IL | — | ◇ UNVERIFIED |
| LHLawson Hughes CO INC | South El Monte | CA | — | ◇ UNVERIFIED |
| LSLexington Steel CORP | Bedford Park | IL | — | ◇ UNVERIFIED |
| LILinesets INC | Sanger | CA | — | ◇ UNVERIFIED |
| LCLiska Constructors Dba Aeroforming | Paramount | CA | — | ◇ UNVERIFIED |
| LTLitesteel Technologies | Troutville | VA | — | ◇ UNVERIFIED |
| LOLive Oak Metal Works & Supply, LLC | Florence | SC | — | ◇ UNVERIFIED |
| LRLock Ridge Tool Company INC | Upland | CA | — | ◇ UNVERIFIED |
| LELockwood Enterprise, LLC | Aitkin | MN | — | ◇ UNVERIFIED |
| LALos Angeles Pump and Valve Products | Huntington Park | CA | — | ◇ UNVERIFIED |
| LALos Angeles Pump and Valve Products, Inc. | Huntington Park | CA | — | ◇ UNVERIFIED |
| LILowell Industries INC | Portland | TN | — | ◇ UNVERIFIED |
| LBLuvata Buffalo INC | Buffalo | NY | — | ◇ UNVERIFIED |
| MGMaggi Gutierrez | Compton | CA | — | ◇ UNVERIFIED |
| MMMagic Metals, INC | Palmer | AK | — | ◇ UNVERIFIED |
 Magnetic Metals Corporation | Camden | NJ | — | ◇ UNVERIFIED |
| MSMajestic Steel Usa, INC. | Grand Prairie | TX | — | ◇ UNVERIFIED |
| MMMan-sea Metal, INC. | Mount Zion | IL | — | ◇ UNVERIFIED |
| MAMapes and Sprowl Steel, LTD. | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| MGMarion Gardner Jr | Dennison | IL | — | ◇ UNVERIFIED |
| MMMaster Machine & Repair Corporation | Bedford Park | IL | — | ◇ UNVERIFIED |
| MBM & B Property LLC | Brandon | MN | — | ◇ UNVERIFIED |
| MSMckinsey Steel & Supply of Florida INC. | Lauderdale Lakes | FL | — | ◇ UNVERIFIED |
| MSMclouth Steel Gibraltar Plant | Gibraltar | MI | — | ◇ UNVERIFIED |
| MIMcr Industries LLC | Morristown | TN | — | ◇ UNVERIFIED |
 Metal Culverts INC M & M Highway Materials Div | Columbia | MO | — | ◇ UNVERIFIED |
| MRMetal Resource INC. | Hinsdale | IL | — | ◇ UNVERIFIED |
| MSMetal Sales Manufacturing Corporation | Otsego | MN | — | ◇ UNVERIFIED |
| MMMetroplex Metal Fabrication | Mesquite | TX | — | ◇ UNVERIFIED |
| MVMiami Valley Steel Service, INC. | Piqua | OH | — | ◇ UNVERIFIED |
| MCMichels & CO Furniture Mfg | Lynwood | CA | — | ◇ UNVERIFIED |
| MSMichigan Steel Industries INC Dba Michigan Steel Strapping | Taylor | MI | — | ◇ UNVERIFIED |
| MIMid-state Industries Operating, INC. | Arcola | IL | — | ◇ UNVERIFIED |
| MZMidwest Zinc-hillsboro INC | Hillsboro | IL | — | ◇ UNVERIFIED |
| MMMillerbernd Manufacturing Company | Winsted | MN | — | ◇ UNVERIFIED |
| MMMission Metals | Rialto | CA | — | ◇ UNVERIFIED |
| MMMk Metalfoils USA INC | Duncan | SC | — | ◇ UNVERIFIED |
| MTMonski Tool* | Elmhurst | IL | — | ◇ UNVERIFIED |
| MBMontclair Bronze INC | Montclair | CA | — | ◇ UNVERIFIED |
| MMoozcomp | Santa Monica | CA | — | ◇ UNVERIFIED |
| MSMounsey Steel Products | Erie | MI | — | ◇ UNVERIFIED |
| MIMubea INC | Florence | KY | — | ◇ UNVERIFIED |
| MIMubea INC. | Florence | KY | — | ◇ UNVERIFIED |
| MBMueller Brass CO | Belding | MI | — | ◇ UNVERIFIED |
| NCNamasco Corporation | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| NCNational Copper & Smelting | Huntsville | AL | — | ◇ UNVERIFIED |
| NMNational Material CO | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| NMNational Material Processing | East Chicago | IN | — | ◇ UNVERIFIED |
| NPNational Processing Company | Chicago | IL | — | ◇ UNVERIFIED |
| NSNational Steel Fabricators | Rice Lake | WI | — | ◇ UNVERIFIED |
| NWNational Wire & Cable CORP | Los Angeles | CA | — | ◇ UNVERIFIED |
| NRNatl Roll Co/vertical Seal CO | Pleasantville | PA | — | ◇ UNVERIFIED |
| NLNavitus LLC | Bellefonte | PA | — | ◇ UNVERIFIED |
| NCNewark Carting INC | Newark | NJ | — | ◇ UNVERIFIED |
| NPNew Process Steel - Nps | Alsip | IL | — | ◇ UNVERIFIED |
| NMNexans Magnet Wire USA Incorporated | Mexico | MO | — | ◇ UNVERIFIED |
| NLNiagara Lasalle Corporation | Hammond | IN | — | ◇ UNVERIFIED |
| NLNiagara Lasalle Corporation | Chattanooga | TN | — | ◇ UNVERIFIED |
| NBNielsen & Bainbridge, LLC. | Bridgeview | IL | — | ◇ UNVERIFIED |
| NANorth American Stainless | Ghent | KY | — | ◇ UNVERIFIED |
| NCNorth Coast Steel LLC | Willoughby | OH | — | ◇ UNVERIFIED |
| NENorthern Empire, LLC | Walker | MN | — | ◇ UNVERIFIED |
| NTNss Technologies, INC. | Tyler | TX | — | ◇ UNVERIFIED |
 Nucor Steel Memphis INC | Memphis | TN | — | ◇ UNVERIFIED |
| OSOld School Services | Henderson | TX | — | ◇ UNVERIFIED |
| OSOlympic Steel INC | Detroit | MI | — | ◇ UNVERIFIED |
| OMOmco Midwest Roll Forming | Pierceton | IN | — | ◇ UNVERIFIED |
| OWOmega Wire INC Santa Teresa Plant | Santa Teresa | NM | — | ◇ UNVERIFIED |
| OMO'neal Manufacturing Services | Ambridge | PA | — | ◇ UNVERIFIED |
| OSOregon Steel Mills-fontana Div | Fontana | CA | — | ◇ UNVERIFIED |
| OCOutokumpu Copper Franklin | Franklin | KY | — | ◇ UNVERIFIED |
| OSOutokumpu Stainless | Richburg | SC | — | ◇ UNVERIFIED |
| OSOwens Steel Fabricators, INC. | Dallas | GA | — | ◇ UNVERIFIED |
| PMPacer Marine | Sarasota | FL | — | ◇ UNVERIFIED |
| PSPacific Steel Group | Bloomington | CA | — | ◇ UNVERIFIED |
| PSPacific Steel & Recycling | Mills | WY | — | ◇ UNVERIFIED |
| PGPanther Global Technologies | Wixom | MI | — | ◇ UNVERIFIED |
| PMPanther Machine INC | Wixom | MI | — | ◇ UNVERIFIED |
| PMParamount Metals & Supply CO | Paramount | CA | — | ◇ UNVERIFIED |
| PIPaughco, INC | Mound House | NV | — | ◇ UNVERIFIED |
| PFPenny Fabrication | Johnstown | OH | — | ◇ UNVERIFIED |
