| ACAccu Cast Operations | Chattanooga | TN | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AMAero Metals, INC Dar;ington St | La Porte | IN | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
 Allied Metals CORP | Troy | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AAAmerican Aerospace Technical Castings INC | Phoenix | AZ | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| ASAmeron Steel Fabrication Division | Fontana | CA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| AIAuburn Investment Castings | Auburn | AL | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| APAvalon Precision Casting Company LLC | Cleveland | OH | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CFCalcagno Foundry | Boring | OR | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CACast Alloys INC | Northridge | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CEChart Energy & Chemical INC | La Crosse | WI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CTCooper Tools LLC | Monroe | NC | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| DMDaimlerchrysler Mt Elliott | Detroit | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| DIDolphin Incorporated | Phoenix | AZ | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| ECElectro Core | Washington | MO | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| FCFlowserve Corporation * | Dayton | OH | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| FFFunk Finecast INC | Columbus | OH | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| ICInvecast Corporation | Warren | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| KCKrall Cast INC | City of Industry | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| MSMorton Salt INC - Weeks Island Facility | New Iberia | LA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| PPPrecision Propellers | Indianapolis | IN | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| QIQuality Investment Castings INC | Blandon | PA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| SASouthern Alloy CORP | Sylacauga | AL | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| TITeledyne Instruments - Analytical Instruments | City of Industry | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| YMYamaha Marine Precision Propellers INC | Indianapolis | IN | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CVCounterGravity Vacuum Cast Operation (VCO) | Milford | NH | Primary Metal Manufacturing331512 | 100-499 | ◐ LIKELY ACTIVE |
| DDafco | Louisville | KY | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| DADafco Aerospace | Louisville | KY | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| PSPCC Structurals SSB1 | Milwaukee | OR | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| PSPCC Structurals SSBO | Clackamas | OR | Primary Metal Manufacturing331512 | 500+ | ◐ LIKELY ACTIVE |
| PSPCC Structurals - SWC | Portland | OR | Primary Metal Manufacturing331512 | 100-499 | ◐ LIKELY ACTIVE |
| PMPT- Mississippi Investment Castings | Columbus | MS | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| QQQuality Quimbaya CORP. | Baldwin Park | CA | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| SISeaCast Inc - Seattle | Marysville | WA | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| SESigma Engineered Solutions - IC | Markesan | WI | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| SMSuperior Metals Manufacturing | Chittenango | NY | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| KTK.w. Thompson Tool CO. INC | Rochester | NH | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AFAelco Foundries INC | Milwaukee | WI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AMAero Metals, INC. | La Porte | IN | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AHAlcoa Howmet - Ti Cast Plant 5 | Whitehall | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AAAmerican Alloy Foundry INC | Baltimore | MD | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
 Barron Industries | Oxford | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CPCastco Products | Petoskey | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CVChicago Vacuum Castings CORP | Chicago | IL | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CCCoastcast CORP | Rancho Dominguez | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CICoastcast INC | Gardena | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| CICustom Industrial CO. | Olathe | KS | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
 Dameron Alloy Foundries INC | Compton | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| DIDolphin Incorporated Dba Dolphin Castings | Phoenix | AZ | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| EEEutectic Engineering INC | Detroit | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| FPFenico Precision Castings INC | Paramount | CA | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
