| 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 |
| TTurbocare | Chicopee | MA | — | ◐ LIKELY ACTIVE |
| TPTyler Pipe | Tyler | TX | — | ◐ LIKELY ACTIVE |
| UPUlrich Planfiling Equipment CORP | Lakewood | NY | — | ◐ LIKELY ACTIVE |
| UCUnicast Co/boyertown | Boyertown | PA | — | ◐ LIKELY ACTIVE |
| UCUS Coast Guard Base Ketchikan | Ketchikan | AK | — | ◐ LIKELY ACTIVE |
| VTVishay Tansitor Electronics | Bennington | VT | — | ◐ 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 |
| ATAdvanced Turbine Components Mfg | Tempe | AZ | — | ◇ UNVERIFIED |
| AIAlpha Investment Casting CORP / Alpha Investment Casting CORP | Tulsa | OK | — | ◇ 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 |
| BHBaker Hughes - Hughes Christensen | The Woodlands | TX | — | ◇ 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 |
 Carley Foundry INC | Blaine | MN | — | ◇ UNVERIFIED |
| CCCarlyle Compressor Remanufacturing | Stone Mountain | GA | — | ◇ UNVERIFIED |
| CCCascade CORP (0812100207) | Springfield | OH | — | ◇ 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 |
| CCChromalloy Connecticut | Wallingford | CT | — | ◇ UNVERIFIED |
| CCChrome Craft | Sacramento | CA | — | ◇ UNVERIFIED |
| CDChrome Deposit CORP | Akron | OH | — | ◇ UNVERIFIED |
| CPCitation Precision | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| CMColby Metal INC | Colby | WI | — | ◇ UNVERIFIED |
| CCCook Compression | Jeffersonville | IN | — | ◇ UNVERIFIED |
| CCCopeland CORP | Hartselle | AL | — | ◇ UNVERIFIED |
| CICorning INC - Erwin Manufacturing Complex | Painted Post | NY | — | ◇ UNVERIFIED |
| CCCrenlo Cab Products INC - Plant 2 | Rochester | MN | — | ◇ 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 |
| DRDiesel Radiator CO | Melrose Park | IL | — | ◇ UNVERIFIED |
 Dubose Strapping Inc.-treatment Plant #1 | Crawfordsville | IN | — | ◇ UNVERIFIED |
| EJEast Jordan Foundry LLC | Elmira | MI | — | ◇ UNVERIFIED |
| EIEbaa Iron Eastland Plant | Eastland | TX | — | ◇ UNVERIFIED |
| EMElkay Mfg | Broadview | IL | — | ◇ UNVERIFIED |
| EPElkay Plumbing Products Company | Ogden | UT | — | ◇ UNVERIFIED |
| EMEriez Magnetics Wager | Erie | PA | — | ◇ UNVERIFIED |
| EPEsco Plant 3 | Portland | OR | — | ◇ UNVERIFIED |
| EFEureka Foundry Company | Chattanooga | TN | — | ◇ UNVERIFIED |
| FCFord Cleveland Casting Plant | Brookpark | OH | — | ◇ UNVERIFIED |
| FPFs Precision Tech | Compton | CA | — | ◇ UNVERIFIED |
| FPFulmer / Perma Cast a Division of Motive Power, INC | Export | PA | — | ◇ UNVERIFIED |
 General Carbide CORP | Greensburg | PA | — | ◇ UNVERIFIED |
| GTGoulds Turbine Foundry | Slaton | TX | — | ◇ UNVERIFIED |
| GIGray Iron Fndry | Blackwell | OK | — | ◇ UNVERIFIED |
| GGGsi Group | Taylorville | IL | — | ◇ UNVERIFIED |
| HLHawkline LLC | Mount Orab | OH | — | ◇ UNVERIFIED |
| HSHazelett Strip-casting | Colchester | VT | — | ◇ UNVERIFIED |
| HLHighland Lakes Quality Casting INC. | Marble Falls | TX | — | ◇ UNVERIFIED |
| HMHitchiner Manufacturing CO INC | Milford | NH | — | ◇ UNVERIFIED |
| HMHogan Manufacturing, INC | Escalon | CA | — | ◇ 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 |
| MMMarine Mechanical CORP | Cleveland | OH | — | ◇ UNVERIFIED |
| MCMed Cast Incorporated | Warsaw | IN | — | ◇ 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 |
