| BMBremer Manufacturing | Elkhart Lake | WI | — | ◇ UNVERIFIED |
| BLBrightsmith Llc/falls Twp | Morrisville | PA | — | ◇ UNVERIFIED |
 Carley Foundry INC | Blaine | MN | — | ◇ UNVERIFIED |
| CFCentury Foundry INC | Muskegon Hts | MI | — | ◇ UNVERIFIED |
| CPCitation Precision | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| CFCoastal Foundry CO | Houston | TX | — | ◇ UNVERIFIED |
| CMConsolidated Metco INC | Monroe | NC | — | ◇ UNVERIFIED |
| CPConsolidated Precision Products - Minneapolis | Bloomington | MN | — | ◇ UNVERIFIED |
 Cpp Cleveland | Eastlake | OH | — | ◇ UNVERIFIED |
| CHCsm Horvath Ledgebrook - Brost Foundry CO | Mansfield | OH | — | ◇ UNVERIFIED |
| DCDuro Cast INC | Somonauk | IL | — | ◇ UNVERIFIED |
| EFEpcor Foundries | Cincinnati | OH | — | ◇ UNVERIFIED |
| FMFrancis Manufacturing Co-francis Manufacturing CO | Russia | OH | — | ◇ UNVERIFIED |
| FPFs Precision Tech | Compton | CA | — | ◇ UNVERIFIED |
| GAGeneral Aluminum (1667070012) | Ravenna | OH | — | ◇ UNVERIFIED |
| GAGeneral Aluminum Manufacturing CO | Conneaut | OH | — | ◇ UNVERIFIED |
| HIHarvey Industries LLC | Wabash | IN | — | ◇ UNVERIFIED |
| HLHighland Lakes Quality Casting INC. | Marble Falls | TX | — | ◇ UNVERIFIED |
| HMHitchiner Manufacturing CO INC | Milford | NH | — | ◇ UNVERIFIED |
| HMHitchiner Manufacturing - Wilton Road | Milford | NH | — | ◇ UNVERIFIED |
| HPHubbell Power Systems Leeds | Leeds | AL | — | ◇ UNVERIFIED |
| ICInvecast Corporation | Warren | MI | — | ◇ UNVERIFIED |
| MFMartin Foundry CO | Kansas City | MO | — | ◇ UNVERIFIED |
| MDMbaf - Division of G&w Electric | Blue Island | IL | — | ◇ UNVERIFIED |
| MCMed Cast Incorporated | Warsaw | IN | — | ◇ UNVERIFIED |
| MTMelling Tool Company | Battle Creek | MI | — | ◇ UNVERIFIED |
| MPMississippi Precision Cast Parts LLC | Columbus | MS | — | ◇ UNVERIFIED |
| MAMuskegon Aluminum Bronze F | Muskegon | MI | — | ◇ UNVERIFIED |
| NSNet Shapes, INC. | Ontario | CA | — | ◇ UNVERIFIED |
| OIOklahoma Investment Casting CO | Blackwell | OK | — | ◇ UNVERIFIED |
| PFPac Foundries - Industry | City of Industry | CA | — | ◇ UNVERIFIED |
 Pcc Structurals, INC. - Aluminum & Stainless Steel Foundry | Ogden | UT | — | ◇ UNVERIFIED |
| Pcc Structurals INC - Small Structurals Business Operations | Clackamas | OR | — | ◇ UNVERIFIED |
| PAPrecision Aluminum - Foundry Division | Rock Island | IL | — | ◇ UNVERIFIED |
| SSSeacast Seattle | Seattle | WA | — | ◇ UNVERIFIED |
| SAShipston Aluminum Technologies | Fruitport | MI | — | ◇ UNVERIFIED |
| SRSturm Ruger Firearms Manufacturing Facility | Newport | NH | — | ◇ UNVERIFIED |
| SCSure Cast | Burnet | TX | — | ◇ UNVERIFIED |
| TAT and L Foundry INC / T and L Foundry | Glenpool | OK | — | ◇ UNVERIFIED |
| TCTech Cast LLC | Myerstown | PA | — | ◇ UNVERIFIED |
| TITeledyne Instruments - Analytical Instruments | City of Industry | CA | — | ◇ UNVERIFIED |
| TTTooling Technology | Fort Loramie | OH | — | ◇ UNVERIFIED |
| WPWisconsin Precision Casting CORP | East Troy | WI | — | ◇ UNVERIFIED |
| WTWolf Tech Llc/douglassville | Douglassville | PA | — | ◇ UNVERIFIED |
| WIWyman-gordon Investment Castings, Incorporated | Groton | CT | — | ◇ UNVERIFIED |
| 4N45 Norton St | Honeoye Falls | NY | 20–99 | ◐ LIKELY ACTIVE |
| ABACMT Bristol | Bristol | CT | 1–19 | ◐ LIKELY ACTIVE |
| AMATEK Metal Technologies | New Hampton | IA | 100–499 | ◐ LIKELY ACTIVE |
| BABodine Aluminum, Inc.- Jackson | Jackson | TN | 500+ | ◐ LIKELY ACTIVE |
| CICarson Industries, Inc. | Freeport | PA | 20–99 | ◐ LIKELY ACTIVE |
