| MIMcr Industries LLC | Morristown | TN | — | ◇ UNVERIFIED |
| MFMercedes Fabricating, INC. | Chicago Heights | IL | — | ◇ UNVERIFIED |
| MMMerchants Metals INC | Fairfield | AL | — | ◇ 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 |
| MSMetrock Steel & Wire CO. | Montevallo | AL | — | ◇ 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 |
| MIMgf Industries | Rockford | IL | — | ◇ UNVERIFIED |
| MIMgf Industries LLC | Rockford | IL | — | ◇ 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 |
| MCMid Continent Steel & Wire, INC. | Poplar Bluff | MO | — | ◇ UNVERIFIED |
| MIMid-state Industries Operating, INC. | Arcola | IL | — | ◇ UNVERIFIED |
| MFMid-west Fabricating Co, West Bent Bolt | Santa Fe Springs | CA | — | ◇ 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 |
| MSMil Spe Magnetics INC | Pomona | CA | — | ◇ UNVERIFIED |
| MIMiranda Iron Works Inc. | Lake Elsinore | CA | — | ◇ UNVERIFIED |
| MMMission Metals | Rialto | CA | — | ◇ UNVERIFIED |
| MSMiss Steel LLC | Mechanicville | NY | — | ◇ UNVERIFIED |
| MSMiss Steel LLC | Clifton Park | NY | — | ◇ UNVERIFIED |
| MAMj Associates Steel Co., INC. | Philadelphia | PA | — | ◇ UNVERIFIED |
| MIMK Industries, LLC | Seattle | WA | — | ◇ UNVERIFIED |
| MMMk Metalfoils USA INC | Duncan | SC | — | ◇ UNVERIFIED |
| MPMmi Products INC | Bartonville | IL | — | ◇ UNVERIFIED |
| MMM & M Precision LLC | Lockport | NY | — | ◇ UNVERIFIED |
| MWMoffat Wire & Display, INC. | Addison | IL | — | ◇ UNVERIFIED |
| MTMonski Tool* | Elmhurst | IL | — | ◇ UNVERIFIED |
| MSMounsey Steel Products | Erie | MI | — | ◇ UNVERIFIED |
| MIMtm Industrial | Oceanside | CA | — | ◇ UNVERIFIED |
| MIMubea INC | Florence | KY | — | ◇ UNVERIFIED |
| MIMubea INC. | Florence | KY | — | ◇ UNVERIFIED |
| MEMvi Engineering & Manufacturing INC | Ontario | CA | — | ◇ UNVERIFIED |
| MAMzg Associates Ii LLC | Chicago Heights | IL | — | ◇ UNVERIFIED |
| NCNamasco Corporation | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| NPNamco Precision Corp | Seattle | WA | — | ◇ UNVERIFIED |
| NMNational Material CO | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| NMNational Material Processing | East Chicago | IN | — | ◇ UNVERIFIED |
