| LILarry Iron Works INC. | Bronx | NY | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| LMLasser Machine Shop LLC | Nogales | AZ | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| LFLb Foster Company- Arp Plant | Pueblo | CO | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| LTLevy Texas Mill Services | Sinton | TX | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| LSLiberty Steel Laplace, INC. | La Place | LA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| LSLinear Shower Drains, LLC | Ponte Vedra | FL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MWMansell Welding, INC. | Lk Havasu Cty | AZ | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MAMaruichi American CORP | Santa Fe Springs | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MCMaster Cutting & Engineering INC | Santa Fe Springs | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MFMercedes Fabricating, INC. | Chicago Heights | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MSMetro Steel and Pipe Supply, INC | Leesburg | FL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MSMetro Steel & Pipe Supply, INC. | Tavares | FL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MIMetzgermoore, INC. | Atlanta | GA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MMMicron Manufacturing Inc. | LaGrange | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MIMidwest Industrial Contract Services, LLC | Girard | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MIMiranda Iron Works Inc. | Lake Elsinore | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MSMiss Steel LLC | Mechanicville | NY | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MSMiss Steel LLC | Clifton Park | NY | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MIMK Industries, LLC | Seattle | WA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MMM & M Precision LLC | Lockport | NY | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MIMtm Industrial | Oceanside | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MEMvi Engineering & Manufacturing INC | Ontario | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NPNamco Precision Corp | Seattle | WA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NMNational Material Processing, LLC | Chicago | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NANew Age Design & Tool, Inc. | Lagrange | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NSNorth Star Steel Arizona | Golden Valley | AZ | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NSNorth Star Steel (recently Purchased By Gerdau Ameristeel) | St. Paul | MN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NCNucor Castrip Arkansas, LLC | Blytheville | AR | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NCNucor Corporation Steel Mill | Plymouth | UT | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NDNucor Dc Warehouse | Birmingham | AL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NSNucor Steel Longview | Longview | TX | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| NSNucor Steel West Virginia LLC | Apple Grove | WV | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| OFOil Field Pipe and Supply CO. | Springfield | MO | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| OGOld Guard Industrial Group, LLC | Indianapolis | IN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| OMOlympic Metal Cutting | Montebello | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| OROttawa River Steel | Detroit | MI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PCParamit Corporation | Morgan Hill | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PCPeak Collision 2 | Littleton | CO | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PSPennsylvania Sintered Metals INC | Emporium | PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PUPetmin USA Incorporated (0204012023) | Ashtabula | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| POPhlebotomists on Wheels | Pompano Beach | FL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PMPrecision Machine Shop Inc | Houston | TX | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PTPrecision Tooling Technologies, LLC | Zeeland | MI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
 Prentex Alloy Fabricators, Incorporated | Dallas | TX | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PDProtech Design | Anaheim | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| QQQuick Quack Car Wash Coe | Roseville | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| RFRebellion Fabrication LLC | Wahoo | NE | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| RERepublic Engineered Products, INC. | Canton | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| RSRepublic Steel, Lackawanna | Blasdell | NY | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| RPR P M Centerless Grinding CO | Norco | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
