| ICIntermet Corporation Radford | Radford | VA | — | ◇ UNVERIFIED |
| IDIntermet Decatur Foundry | Decatur | IL | — | ◇ UNVERIFIED |
| IHIntermet Havana Foundry | Havana | IL | — | ◇ UNVERIFIED |
| IIIntermet Ironton Foundry | Ironton | OH | — | ◇ UNVERIFIED |
| IAInternational Agile Manufacturing LLC | Statesboro | GA | — | ◇ UNVERIFIED |
| ICInterstate Castings | Indianapolis | IN | — | ◇ UNVERIFIED |
| IRIron Rod | Los Gatos | CA | — | ◇ UNVERIFIED |
| JCJerry Carroll Machining INC Dba Electrocut-pacific | San Carlos | CA | — | ◇ UNVERIFIED |
| JCJ.E.T. Corporation | Bridgeport | CT | — | ◇ UNVERIFIED |
| JBJohn Bouchard & Sons (closed) | Nashville | TN | — | ◇ UNVERIFIED |
| JDJohn Deere Foundry - Waterloo Facility | Waterloo | IA | — | ◇ UNVERIFIED |
| JSJohnstown Specialty Casting/johnstown Foundry | Johnstown | PA | — | ◇ UNVERIFIED |
| JRJots Rentals | Longview | TX | — | ◇ UNVERIFIED |
| JCJp Castings INC Dba Specialty Castings | Springport | MI | — | ◇ UNVERIFIED |
| JRJ R Hoe & Sons INC | Middlesboro | KY | — | ◇ UNVERIFIED |
| KHKempf Holdings, LLC | Omaha | NE | — | ◇ UNVERIFIED |
| KAKeys Aluminum | La Mirada | CA | — | ◇ UNVERIFIED |
| KFKits Foundry and Machine, INC. | Shelley | ID | — | ◇ UNVERIFIED |
| KFKnapp Foundry Company INC (1677010014) | Akron | OH | — | ◇ UNVERIFIED |
| KPK P Iron Foundry INC | Fresno | CA | — | ◇ UNVERIFIED |
| KIKramer International INC | Shelby Township | MI | — | ◇ UNVERIFIED |
| KFKulp Foundry INC | Wind Gap | PA | — | ◇ UNVERIFIED |
| LFLagrange Foundry-lagrange | La Grange | MO | — | ◇ UNVERIFIED |
| LFLanam Foundry | New Martinsville | WV | — | ◇ UNVERIFIED |
| LMLancaster Malleable /manheim-keller | Lancaster | PA | — | ◇ UNVERIFIED |
| LPLa Porte Technologies LLC | La Porte | IN | — | ◇ UNVERIFIED |
| LFLebaron Foundry INC | Brockton, City of | MA | — | ◇ UNVERIFIED |
| LFLeed Foundry Inc/st Clair | Saint Clair | PA | — | ◇ UNVERIFIED |
| LCLiberty Casting Company-kip Moldline (0333010042) | Kenton | OH | — | ◇ UNVERIFIED |
| LILkr INC Dba Raycon Industries | Brea | CA | — | ◇ UNVERIFIED |
| LFLufkin Foundry & Power Transmission Divisions | Lufkin | TX | — | ◇ UNVERIFIED |
| LFLynchburg Foundry Llc, D/b/a Archer Creek Foundry | Lynchburg | VA | — | ◇ UNVERIFIED |
| MFMacaulay Foundry INC | Berkeley | CA | — | ◇ UNVERIFIED |
 Machineworks Manufacturing | Chatsworth | CA | — | ◇ UNVERIFIED |
| MMMagnus Metal INC | East Peoria | IL | — | ◇ UNVERIFIED |
| MMManchester Metals | North Manchester | IN | — | ◇ UNVERIFIED |
| MAManhole Adjusting Contractors | Monterey Park | CA | — | ◇ UNVERIFIED |
| MMMarcellus Metalcasters INC | Marcellus | MI | — | ◇ UNVERIFIED |
| MIMas Iron CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| MFMay Foundry & Machine CO | Slc | UT | — | ◇ UNVERIFIED |
| MMcwane | Tyler | TX | — | ◇ UNVERIFIED |
| MCMcwane Cast Iron Pipe CO. | Birmingham | AL | — | ◇ UNVERIFIED |
| MCMcwane Cast Iron Pipe CO. | Birmingham | AL | — | ◇ UNVERIFIED |
| MIMcwane, INC. | Oakland | CA | — | ◇ UNVERIFIED |
| MSMetaldyne Sinterforged Products LLC | North Vernon | IN | — | ◇ UNVERIFIED |
| MPMetalico Pgh INC | Pittsburgh | PA | — | ◇ UNVERIFIED |
| MTMetal Technologies Dba Ravenna Ductile Iron Plant | Ravenna | MI | — | ◇ UNVERIFIED |
| MLMetavation LLC Vassar Plt | Vassar | MI | — | ◇ UNVERIFIED |
| MMMicro Metals | Richmond | CA | — | ◇ UNVERIFIED |
| MMMidwest Metallurgical Laboratory INC | Marshall | MI | — | ◇ UNVERIFIED |
| MMMidwest Metallurgical Laboratory Site | Marshall | MI | — | ◇ UNVERIFIED |
 M&l Precision Machining INC | Morgan Hill | CA | — | ◇ UNVERIFIED |
| MCMonroe Custom Utility Bodies, INC. | Greenfield | IN | — | ◇ UNVERIFIED |
| MMMontague Machine CO | Montague (turners Falls) | MA | — | ◇ UNVERIFIED |
| MCMpg Casting Technologies | Kingsford | MI | — | ◇ UNVERIFIED |
| MCMunicipal Castings INC | Madison | MN | — | ◇ UNVERIFIED |
| MAMzd Acquisitions INC Dba Moz Designs INC | Oakland | CA | — | ◇ UNVERIFIED |
| NFNeenah Foundry CO - Plants 2 and 3 (w2179) | Neenah | WI | — | ◇ UNVERIFIED |
| NCNew Castings Incorporated | Spokane | WA | — | ◇ UNVERIFIED |
| NCNew Castle Foundry/new Castle | New Castle | PA | — | ◇ UNVERIFIED |
| NHNew Haven Foundry | New Haven | MI | — | ◇ UNVERIFIED |
| NVNew Vermillion Iron Works, INC. | Hoopeston | IL | — | ◇ UNVERIFIED |
| NINorgren INC | Littleton | CO | — | ◇ UNVERIFIED |
| NANorth American Royalties INC. Wheland Automotive Industries | Chattanooga | TN | — | ◇ UNVERIFIED |
| NSNorthern Steel Castings INC | Wisconsin Rapids | WI | — | ◇ UNVERIFIED |
 Oil City Iron Works INC | Corsicana | TX | — | ◇ UNVERIFIED |
| OCOneida Casting Group | Oneida | NY | — | ◇ UNVERIFIED |
| OBOsc Builders | Pacific | MO | — | ◇ UNVERIFIED |
| OGOz Gedney Llc/shoemakersville Plt | Shoemakersville | PA | — | ◇ UNVERIFIED |
| PHPacific Handy Cutter INC | Irvine | CA | — | ◇ UNVERIFIED |
| PSPacific Securities INC | Spokane | WA | — | ◇ UNVERIFIED |
| PMPadnos Manufacturing INC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| PPPa Precision Cast Pa/lebanon City Plt | Lebanon | PA | — | ◇ UNVERIFIED |
| PIParamelt Icd Warehouse | Muskegon | MI | — | ◇ UNVERIFIED |
| PEParamount Extrusions CO. | Paramount | CA | — | ◇ UNVERIFIED |
| PFParhen Foundry, INC. | Amory | MS | — | ◇ UNVERIFIED |
| PGParker Gear Pump Division | Youngstown | OH | — | ◇ UNVERIFIED |
| PIPenatek Inds INC | Odessa | TX | — | ◇ UNVERIFIED |
| PFPentair Flow Technologies, LLC - Ashland Casting Center | Ashland | OH | — | ◇ UNVERIFIED |
| PCPerm Cast LLC | Cynthiana | KY | — | ◇ UNVERIFIED |
| PDPeter Day | Portland | OR | — | ◇ UNVERIFIED |
| PFPioneer Foundry CO INC | Jackson | MI | — | ◇ UNVERIFIED |
| PPPipe Properties, LLC and Gateway View, LLC | Chattanooga | TN | — | ◇ UNVERIFIED |
| PPPiqua Power Plant | Piqua | OH | — | ◇ UNVERIFIED |
| PCPrecision Cast Products | Oakland | CA | — | ◇ UNVERIFIED |
| PCPrime Cast INC | Beloit | WI | — | ◇ UNVERIFIED |
| PIPrimecast, Inc.(former) | South Beloit | IL | — | ◇ UNVERIFIED |
| PPProcess Prototype INC | Romulus | MI | — | ◇ UNVERIFIED |
| PCPure Castings | Austin | TX | — | ◇ UNVERIFIED |
| QCQuincy Castings, INC. | Quincy | OH | — | ◇ UNVERIFIED |
| RTRadford Trading, LLC | Radford | VA | — | ◇ UNVERIFIED |
| RMRainbow Muffler & Brake | Sandusky | OH | — | ◇ UNVERIFIED |
| RIRansom Ind Lp/macungie | Macungie | PA | — | ◇ UNVERIFIED |
| RPRayonier Performance Fibers LLC Marketing & Research Center | Jesup | GA | — | ◇ UNVERIFIED |
| RMReed Mfg/erie | Erie | PA | — | ◇ UNVERIFIED |
| RMRenaissance Manufacturing Group, LLC | Waukesha | WI | — | ◇ UNVERIFIED |
| RMReplacement Metal Castings Dba Carolina Metal Castings | Hardeeville | SC | — | ◇ UNVERIFIED |
| RTRevstone Transportation LLC | Vassar | MI | — | ◇ UNVERIFIED |
| RCRichland Ctr Foundry CO (former) | Richland Center | WI | — | ◇ UNVERIFIED |
| RFRidge Foundry INC | San Leandro | CA | — | ◇ UNVERIFIED |
