American Cast Iron Pipe Company | Birmingham | AL | Primary Metal Manufacturing331210 | 500+ | ● ACTIVE |
Asc Engineered Solutions Llc/columbia Fka Anvil | Columbia | PA | Primary Metal Manufacturing331511 | 500+ | ● ACTIVE |
| CPCharlotte Pipe and Foundry Company | Oakboro | NC | Primary Metal Manufacturing331511 | 500+ | ● ACTIVE |
| LMLodge Manufacturing Company | South Pittsburg | TN | Primary Metal Manufacturing331511 | 500+ | ● ACTIVE |
Waupaca Foundry INC - Plant 2 & 3 | Waupaca | WI | Primary Metal Manufacturing331510 | 500+ | ● ACTIVE |
| JDJohn Deere Waterloo Works Drivetrain Operations & Foundry | Waterloo | IA | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| MCMueller CO | Albertville | AL | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| VCVictaulic Co/forks Facility | Easton | PA | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
Waupaca Foundry INC - Plant 1 | Waupaca | WI | Primary Metal Manufacturing331510 | 500+ | ◐ LIKELY ACTIVE |
Waupaca Foundry INC -plant 4 | Marinette | WI | Primary Metal Manufacturing331510 | 500+ | ◐ LIKELY ACTIVE |
| MDMcwane Ductile | Coshocton | OH | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| GDGM Defiance Operations | Defiance | OH | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| GGrede | Reedsburg | WI | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| MFMapleton Foundry | Mapleton | IL | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
Waupaca Foundry, Inc. Plant 5 | Tell City | IN | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |