| LALeo's Automotive LLC | Littleton | CO | — | ◇ UNVERIFIED |
| LTLevy Texas Mill Services | Sinton | TX | — | ◇ UNVERIFIED |
| LSLexington Steel CORP | Bedford Park | IL | — | ◇ UNVERIFIED |
| LSLexington Steel Corporation | Los Angeles | CA | — | ◇ UNVERIFIED |
| LSLiberty Steel Georgetown | Georgetown | SC | — | ◇ UNVERIFIED |
| LSLiberty Steel Laplace, INC. | Laplace | LA | — | ◇ UNVERIFIED |
| LSLinear Shower Drains, LLC | Ponte Vedra | FL | — | ◇ 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 |
| 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 |
| MWMansell Welding, INC. | Lk Havasu Cty | AZ | — | ◇ UNVERIFIED |
| MAMapes and Sprowl Steel, LTD. | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| MAMaruichi American CORP | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| MCMaster Cutting & Engineering INC | Santa Fe Springs | CA | — | ◇ 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 |
| MFMercedes Fabricating, INC. | Chicago Heights | IL | — | ◇ UNVERIFIED |
| MNMesabi Nugget Delaware LLC | Aurora | MN | — | ◇ UNVERIFIED |
 Metal Culverts INC M & M Highway Materials Div | Columbia | MO | — | ◇ UNVERIFIED |
| MSMetaldyne Sintered Ridgway LLC | Emporium | PA | — | ◇ UNVERIFIED |
| MPMetal Powder Prod/st Marys | Saint Marys | PA | — | ◇ UNVERIFIED |
| MRMetal Resource INC. | Hinsdale | IL | — | ◇ UNVERIFIED |
| MSMetal Sales Manufacturing Corporation | Otsego | MN | — | ◇ UNVERIFIED |
| MMMetroplex Metal Fabrication | Mesquite | TX | — | ◇ UNVERIFIED |
| MSMetro Steel and Pipe Supply, INC | Leesburg | FL | — | ◇ UNVERIFIED |
| MSMetro Steel & Pipe Supply, INC. | Tavares | FL | — | ◇ UNVERIFIED |
| MIMetzgermoore, INC. | Atlanta | GA | — | ◇ 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 |
| MMMicron Manufacturing Inc. | LaGrange | OH | — | ◇ UNVERIFIED |
| MCMid-continent Coal & Coke | Portage | IN | — | ◇ UNVERIFIED |
| MIMid-state Industries Operating, INC. | Arcola | IL | — | ◇ UNVERIFIED |
| MIMidwest Industrial Contract Services LLC | Youngstown | OH | — | ◇ UNVERIFIED |
| MIMidwest Industrial Contract Services, LLC | Girard | OH | — | ◇ UNVERIFIED |
| MSMidwest Scrap Management INC | Kansas City | MO | — | ◇ UNVERIFIED |
| MMMillerbernd Manufacturing Company | Winsted | MN | — | ◇ UNVERIFIED |
