Bridesburg Foundry Company | Whitehall | PA | Primary Metal Manufacturing331523 | 20-99 | ● ACTIVE |
Howmet Corporation | Whitehall | MI | Primary Metal Manufacturing331512 | — | ● ACTIVE |
Bridesburg Foundry Co/whitehall | Whitehall | PA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| HCHowmet Corporation, Plant 4 | Whitehall | MI | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| HCHowmet Corporation, Plants 1 & 3 | Whitehall | MI | Primary Metal Manufacturing331528 | — | ◐ LIKELY ACTIVE |
| HCHowmet Castings Plant 10 | Whitehall | MI | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
| HRHowmet Research Center | Whitehall | MI | Primary Metal Manufacturing331528 | — | ◐ LIKELY ACTIVE |
| BFBridesburg Fndy CO | Whitehall | PA | Primary Metal Manufacturing331529 | 1-19 | ◐ LIKELY ACTIVE |
| HCHowmet Corporation, Hrc and Plants 5 & 10 | Whitehall | MI | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| HAHowmet Aerospace Whitehall Operations - HRC Complex | Whitehall | MI | Primary Metal Manufacturing331529 | 100-499 | ◐ LIKELY ACTIVE |
| HAHowmet Aerospace Whitehall Operations - Plant 5 | Whitehall | MI | Primary Metal Manufacturing331529 | 100-499 | ◐ LIKELY ACTIVE |
| HAHowmet Aerospace Whitehall Operations - Whitehall Casting Plant 10 | Whitehall | MI | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| AHAlcoa Howmet - Ti Cast Plant 5 | Whitehall | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AHAlcoa Howmet Titanium Ingot | Whitehall | MI | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |