| GWGraham White Foundry 1201 | Salem | VA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| GLGreat Lakes Castings LLC | Holland | MI | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| GGrede | Reedsburg | WI | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| GCGrede Casting Integrity | Meadville | PA | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| GWGrede Wisconsin Subsidiaries LLC Browntown | Browntown | WI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| HPHamburg Plow Works Inc. | Hamburg | PA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| HAHearth and Home Technologies - Bethel | Bethel | VT | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| HSHodges SC Facility | Hodges | SC | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| JJackson | Jackson | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| JPJK Pulley Co Inc | St. Louis | MO | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| KCKautex - CWC | Muskegon | MI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| KIKcng Iowa | Cedar Falls | IA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| LMLaurel Machine and Foundry, Hawkes Circle | Laurel | MS | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| LLiberty-550 | Delaware | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| LTLiberty Tec | Delaware | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| MFMapleton Foundry | Mapleton | IL | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| MGMe Global INC. | Minneapolis | MN | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| MHM & H Valve Company | Anniston | AL | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| NFNeenah Foundry Company - Miami Operations | Medley | FL | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| NBNew Boston Division | New Boston | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| NINorthern Iron LLC | St Paul | MN | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| NINorthern Iron LLC | Saint Paul | MN | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| OKO.S. Kelly Company | Springfield | OH | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| PFPier Foundry & Pattern Shop, Inc. | St. Paul | MN | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| PFPier Foundry & Pattern Shop, Inc. | Saint Paul | MN | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| PFPier Foundry & Pattern Shop, Inc. - Shipping | St. Paul | MN | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| PFPier Foundry & Pattern Shop, Inc. - Shipping | Saint Paul | MN | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| PDPortsmouth Division | Portsmouth | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| RCRavenna Casting Center, LLC | Ravenna | MI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| RARMG Anniston LLC | Anniston | AL | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| STSouthern Trenchless Solutions LLC | La Feria | TX | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| SFSP Foundry | South Coffeyville | OK | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| SMSt Marys Foundry | Saint Marys | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| SMSt Marys Foundry | St Marys | OH | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| TFTrumbull Foundry and Alloy Henry Street | Niles | OH | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| TPTyler Pipe Company - Texas | Tyler | TX | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| UCUnicast Company | Boyertown | PA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| UCUnion Casting Industries T/A Industrial Ferguson Foundry | Union | NJ | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| VPViking Pump Inc - Foundry (A Unit of IDEX Corporation) | Cedar Falls | IA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| VNVoestalpine Nortrak | Decatur | IL | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| WFWashington Foundries INC | Hewlett | NY | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
Waupaca Foundry, Inc. Plant 5 | Tell City | IN | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| WPWest Point Foundry & Machine CO. | West Point | GA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| WCWisconsin Cast Iron | Kohler | WI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| AGAustin Gray Iron Foundry | Sheboygan | WI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| FFerroloy | Wichita | KS | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| KFKelly Foundry & Machine Company, INC. | Elkins | WV | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| NCNorthland Castings Corporation | Hart | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| PGPacific Gear Technology, INC. | Norco | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| UEUnion Electric Akers | Avonmore | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |