| CWClow Water Systems Company | Coshocton | OH | — | ◐ LIKELY ACTIVE |
| CCCol-pump Company, INC. (0215010001) | Columbiana | OH | — | ◐ LIKELY ACTIVE |
| GDGm Defiance Casting Operations | Defiance | OH | — | ◐ LIKELY ACTIVE |
| HPHuntington Plating, Inc., Huntington Facility | Huntington | WV | — | ◐ LIKELY ACTIVE |
| MTMcconway & Torley LLC - Steel Castings Mfg Plant | Pittsburgh | PA | — | ◐ LIKELY ACTIVE |
| MGMe Global INC | Duluth | MN | — | ◐ LIKELY ACTIVE |
| MCMueller CO | Decatur | IL | — | ◐ LIKELY ACTIVE |
| NFNorthern Foundry | Hibbing | MN | — | ◐ LIKELY ACTIVE |
| NFN&s Flamespray | Mannford | OK | — | ◐ LIKELY ACTIVE |
| RIRomac Industries | Sultan | WA | — | ◐ LIKELY ACTIVE |
| RIRotek INC. | Florence | KY | — | ◐ LIKELY ACTIVE |
 Sioux City Foundry CO | South Sioux City | NE | — | ◐ LIKELY ACTIVE |
| SNSlac National Accelerator Laboratory | Menlo Park | CA | — | ◐ LIKELY ACTIVE |
| SPStar Pipe USA | Coffeyville | KS | — | ◐ LIKELY ACTIVE |
| SUStarpipe USA Dba Sp Foundry / Sp Foundry | South Coffeyville | OK | — | ◐ LIKELY ACTIVE |
| SMSt. Marys Foundry INC. (0306010004) | Saint Marys | OH | — | ◐ LIKELY ACTIVE |
| TITriangle Industrial CORP | Tucson | AZ | — | ◐ LIKELY ACTIVE |
| TPTyler Pipe | Tyler | TX | — | ◐ LIKELY ACTIVE |
| UCUnicast Co/boyertown | Boyertown | PA | — | ◐ LIKELY ACTIVE |
| WMWard Mfg Plt 1 & 2 | Blossburg | PA | — | ◐ LIKELY ACTIVE |
| WOWhemco - Ohio Foundry INC (0302020023) | Lima | OH | — | ◐ LIKELY ACTIVE |
| XIXtek INC Plant No 2 | Cincinnati | OH | — | ◐ LIKELY ACTIVE |
| APAce Precision | Menomonee Falls | WI | — | ◇ UNVERIFIED |
| AFAmerican Foundry Group / American Alloy Ii | Muskogee | OK | — | ◇ UNVERIFIED |
| AFAmerican Foundry Group LLC - Bixby | Bixby | OK | — | ◇ UNVERIFIED |
| ARAmerican Railcar Industries | Jackson | MO | — | ◇ UNVERIFIED |
| ASAmerican Spincast INC (dba Amstock Supply) | Belton | TX | — | ◇ UNVERIFIED |
| AWAmerican Welding & Tank LLC | West Jordan | UT | — | ◇ UNVERIFIED |
| BBBahr Brothers Manufacturing, INC. | Marion | IN | — | ◇ UNVERIFIED |
| BSBaity Screw Machine Prods INC | Chickasha | OK | — | ◇ UNVERIFIED |
| BCBesser CO | Sioux City | IA | — | ◇ UNVERIFIED |
| BQBesser Quinn Machine & Foundry | Boone | IA | — | ◇ UNVERIFIED |
| BMBorisch Manufacturing CORP | Grand Rapids | MI | — | ◇ UNVERIFIED |
| CICapintec, INC. | Florham Park | NJ | — | ◇ UNVERIFIED |
| CRCaterpillar Remanufacturing Drivetrain LLC | West Fargo | ND | — | ◇ UNVERIFIED |
| CWCatoe's Welding & Fabrication INC | Rock Hill | SC | — | ◇ UNVERIFIED |
| CPCharlotte Pipe and Foundry Company | Charlotte | NC | — | ◇ UNVERIFIED |
| CMCharter Manufacturing CO INC | Woodstock | IL | — | ◇ UNVERIFIED |
| CCChrome Craft | Sacramento | CA | — | ◇ UNVERIFIED |
| CDChrome Deposit CORP | Akron | OH | — | ◇ UNVERIFIED |
| CCCook Compression | Jeffersonville | IN | — | ◇ UNVERIFIED |
| CCCopeland CORP | Hartselle | AL | — | ◇ UNVERIFIED |
| CICorning INC - Erwin Manufacturing Complex | Painted Post | NY | — | ◇ UNVERIFIED |
| CDCrouse-hinds Div of Cooper Inds | Amarillo | TX | — | ◇ UNVERIFIED |
| CCCrown Casting INC | Hodges | SC | — | ◇ UNVERIFIED |
| DLDavis Lynch | Pearland | TX | — | ◇ UNVERIFIED |
| DIDenison Industries Main Foundry | Denison | TX | — | ◇ UNVERIFIED |
| EJEast Jordan Foundry LLC | Elmira | MI | — | ◇ UNVERIFIED |
| EIEbaa Iron Eastland Plant | Eastland | TX | — | ◇ UNVERIFIED |
| EPEsco Plant 3 | Portland | OR | — | ◇ UNVERIFIED |
| EFEureka Foundry Company | Chattanooga | TN | — | ◇ UNVERIFIED |
| FCFord Cleveland Casting Plant | Brookpark | OH | — | ◇ UNVERIFIED |
| FPFulmer / Perma Cast a Division of Motive Power, INC | Export | PA | — | ◇ UNVERIFIED |
| GTGoulds Turbine Foundry | Slaton | TX | — | ◇ UNVERIFIED |
| GIGray Iron Fndry | Blackwell | OK | — | ◇ UNVERIFIED |
| HCHowell Cnc and Machine | Lewiston | ID | — | ◇ UNVERIFIED |
| HCHowmet Castings | Winsted | CT | — | ◇ UNVERIFIED |
| HEHunting Energy Service, INC. | Broussard | LA | — | ◇ UNVERIFIED |
| ICId Castings Building Demolition | Noblesville | IN | — | ◇ UNVERIFIED |
| IMIdeal Machine | Tacoma | WA | — | ◇ UNVERIFIED |
| IPIngersoll-dresser Pump CO | Hastings | NE | — | ◇ UNVERIFIED |
| IKInternational Knife & Saw Incorporated | Florence | SC | — | ◇ UNVERIFIED |
| IPIseli Precision LLC. | Walworth | WI | — | ◇ UNVERIFIED |
| JMJessen Manufacturing CO INC | Elkhart | IN | — | ◇ UNVERIFIED |
 Johns Manville | Tucson | AZ | — | ◇ UNVERIFIED |
| JGJoy Global-solon Operations | Solon | OH | — | ◇ UNVERIFIED |
| KIKennametal Incorporated | New Albany | IN | — | ◇ UNVERIFIED |
| KSKenosha Steel Castings | Kenosha | WI | — | ◇ UNVERIFIED |
| KPKeokuk Prototype Foundry Company, INC. | Kahoka | MO | — | ◇ UNVERIFIED |
| KSK&k Screw Products LLC | East China | MI | — | ◇ UNVERIFIED |
| LLinamar | Arden | NC | — | ◇ UNVERIFIED |
| LSLinamar Structures USA | Southfield | MI | — | ◇ UNVERIFIED |
| LOLogan Oil Tools, INC. | Houston | TX | — | ◇ UNVERIFIED |
| MSMaca Supply CO | Springville | UT | — | ◇ UNVERIFIED |
| MHMa Harrison Mfg CO INC | Birmingham | OH | — | ◇ UNVERIFIED |
| MRMajor Reflector Products | Northbrook | IL | — | ◇ UNVERIFIED |
| 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 |
| MWMotor Wheel Commercial Vehicle Systems INC. | Berea | KY | — | ◇ UNVERIFIED |
| MCMueller CO | Decatur | IL | — | ◇ UNVERIFIED |
| NONational Oilwell Varco/tulsa Multiplex | Tulsa | OK | — | ◇ UNVERIFIED |
| NINibco INC | Blytheville | AR | — | ◇ UNVERIFIED |
| NINorthern Iron & Machine | Saint Paul | MN | — | ◇ UNVERIFIED |
| OIOsco Industries, INC. New Boston Divisi (0773010180) | New Boston | OH | — | ◇ UNVERIFIED |
| OKO.s. Kelly Company (0812100276) | Springfield | OH | — | ◇ UNVERIFIED |
| PPParadigm Precision | Malden | MA | — | ◇ UNVERIFIED |
| PHParker Hannifin CORP Cylinder Div | Saint Marys | OH | — | ◇ 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 |
| RBR. B. Royal Industries | Fond Du Lac | WI | — | ◇ UNVERIFIED |
| RIRebco Inc/kersey | Kersey | PA | — | ◇ UNVERIFIED |
| RSRh Sheppard Foundry Bendix Hanover | Hanover | PA | — | ◇ UNVERIFIED |
| RARobine and Welch Machine and Tool Company INC | Laurel | MS | — | ◇ UNVERIFIED |
| SASenior Aerospace Absolute Manufacturing | Arlington | WA | — | ◇ UNVERIFIED |
| SISimpson Industries INC * | Edon | OH | — | ◇ UNVERIFIED |
