| MTMerritt Tool CO INC - Triumph Structures East Texas | Kilgore | TX | — | ◇ UNVERIFIED |
| MTMetal Technologies INC -three Rivers Gray Iron | Three Rivers | MI | — | ◇ UNVERIFIED |
| MIMetaltek International - Sandusky International Division | Sandusky | OH | — | ◇ UNVERIFIED |
| MAMetem a Ge Power Business | Allentown | PA | — | ◇ UNVERIFIED |
| MMMicro Matic USA INC | Brooksville | FL | — | ◇ UNVERIFIED |
| MPMississippi Precision Cast Parts LLC | Columbus | MS | — | ◇ UNVERIFIED |
| MWMotor Wheel Commercial Vehicle Systems INC. | Berea | KY | — | ◇ UNVERIFIED |
| MCMueller CO | Decatur | IL | — | ◇ UNVERIFIED |
| NONational Oilwell Varco/tulsa Multiplex | Tulsa | OK | — | ◇ UNVERIFIED |
| NGNelson Global Products INC | Viroqua | WI | — | ◇ UNVERIFIED |
| NSNet Shapes, INC. | Ontario | CA | — | ◇ UNVERIFIED |
| NINibco INC | Blytheville | AR | — | ◇ UNVERIFIED |
| NINorthern Iron & Machine | Saint Paul | MN | — | ◇ UNVERIFIED |
| OIOklahoma Investment Casting CO | Blackwell | OK | — | ◇ UNVERIFIED |
| OSO'neal Steel INC | Greensboro | NC | — | ◇ UNVERIFIED |
| OSOneal Steel INC | Ambridge | PA | — | ◇ UNVERIFIED |
| OIOsco Industries, INC. New Boston Divisi (0773010180) | New Boston | OH | — | ◇ UNVERIFIED |
| OKO.s. Kelly Company (0812100276) | Springfield | OH | — | ◇ UNVERIFIED |
| PFPac Foundries - Industry | City of Industry | CA | — | ◇ UNVERIFIED |
| PMPackless Metal Hose & Texas Copper Works Divisions | Waco | TX | — | ◇ UNVERIFIED |
| PPParadigm Precision | Malden | MA | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP | Richland | MI | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Cylinder Div | Saint Marys | OH | — | ◇ UNVERIFIED |
| PHParker Hannifin Sporlan Div - Plant 1 | Washington | MO | — | ◇ UNVERIFIED |
 Pcc Structurals, INC. - Aluminum & Stainless Steel Foundry | Ogden | UT | — | ◇ UNVERIFIED |
| Pcc Structurals INC - Small Structurals Business Operations | Clackamas | OR | — | ◇ UNVERIFIED |
 Precision International LLC | Sistersville | WV | — | ◇ UNVERIFIED |
| PMPrecision Machine INC | Paducah | KY | — | ◇ UNVERIFIED |
| PMPrecision Metalsmiths INC. | Markesan | WI | — | ◇ UNVERIFIED |
| PFProspect Foundry LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
| QCQuaker City Castings (0215090009) | Salem | OH | — | ◇ UNVERIFIED |
| QCQuality Castings CO | Waukesha | WI | — | ◇ UNVERIFIED |
| RIRansohoff INC | Cincinnati | OH | — | ◇ UNVERIFIED |
| RBR. B. Royal Industries | Fond Du Lac | WI | — | ◇ UNVERIFIED |
| RIRebco Inc/kersey | Kersey | PA | — | ◇ UNVERIFIED |
| REReliance Electric CO. | Cleveland | OH | — | ◇ UNVERIFIED |
| RSRh Sheppard Foundry Bendix Hanover | Hanover | PA | — | ◇ UNVERIFIED |
| RARobine and Welch Machine and Tool Company INC | Laurel | MS | — | ◇ UNVERIFIED |
| SSSamuel Son and CO USA INC | Heath | OH | — | ◇ UNVERIFIED |
| SASenior Aerospace Absolute Manufacturing | Arlington | WA | — | ◇ UNVERIFIED |
| SOSfi of Arkansas | Conway | AR | — | ◇ UNVERIFIED |
| SMSimmons Manufacturing | Mcdonough | GA | — | ◇ UNVERIFIED |
| SISimpson Industries INC * | Edon | OH | — | ◇ UNVERIFIED |
| SASputhern Alloy CORP | Sylacauga | AL | — | ◇ UNVERIFIED |
| SCSpx CORP Lightning Div | Rochester | NY | — | ◇ UNVERIFIED |
| SAStandard Alloys Port Arthur | Port Arthur | TX | — | ◇ UNVERIFIED |
| SFStar Foundry & Machine | Salt Lake City | UT | — | ◇ UNVERIFIED |
 Steel Industries Plant 4 | Redford | MI | — | ◇ UNVERIFIED |
| SDStreator Dependable Manufacturing | Streator | IL | — | ◇ UNVERIFIED |
 Superior Forge & Steel Corporation (pittsburgh, Pa) | Pittsburgh | PA | — | ◇ UNVERIFIED |
