| ARAbington Reldan Metals Fairless Hills Fac | Fairless Hills | PA | Primary Metal Manufacturing331410 | 100-499 | ◐ LIKELY ACTIVE |
| AAccumetrics | Royersford | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| AEAccuride Erie Lp/erie Forge Plt | Erie | PA | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| ASAlpha Sintered Metals | Ridgway | PA | Primary Metal Manufacturing331523 | 100-499 | ◐ LIKELY ACTIVE |
Asc Engineered Solutions Llc/columbia Fka Anvil | Columbia | PA | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| APAti Powder Metals, LLC | Oakdale | PA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| BMBear Metallurgical Mfg | Butler | PA | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| BFBeaver Falls Tubular Products LLC | Beaver Falls | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| BVBeaver Valley Alloy Foundry CO | Monaca | PA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| BABoose at Cornwall INC | Lebanon | PA | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| CLCambridge Lee Plants 2, 3, 4 | Reading | PA | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
Carpenter Technology CORP | Reading | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CMConcast Metal Products CO | Mars | PA | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| DMDormont Mfg CO | Export | PA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| DBDura Bond Pipe Llc/steelton | Steelton | PA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| FSFrog Switch & Manufacturing CO | Carlisle | PA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| GOG. O. Carlson, INC. | Oil City | PA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| HCHarmony Castings | Harmony | PA | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| HHH & H Castings | York | PA | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| JWJohnstown Wire Tech/johnstown Wire Plt | Johnstown | PA | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| MIMcc International, INC. | Mc Donald | PA | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| NSNj Shell Casting Corp/ Marietta | Marietta | PA | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| NPNlmk Pennsylvania Lcc | Farrell | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| PUPenn Union Corp/edinboro | Edinboro | PA | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
Phb INC | Fairview | PA | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| PTPhoenix Tube CO | Bethlehem | PA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| PPPiad Precision Casting Corporation | Greensburg | PA | Primary Metal Manufacturing331423 | 100-499 | ◐ LIKELY ACTIVE |
| PPPost Precision Castings INC | Strausstown | PA | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| PKPrecision Kidd Steel CO | Aliquippa | PA | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| RSReynolds Services INC | Greenville | PA | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| RMRitchey Metals CO Inc/hendersonville Plt | Canonsburg | PA | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
| STSalem Tube Mfg | Greenville | PA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| SPSt Prod LLC Dba Wieland Small Tube Prod/altoona | Duncansville | PA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| TCTech Cast LLC | Myerstown | PA | Primary Metal Manufacturing331512 | 100-499 | ◐ LIKELY ACTIVE |
| UEUnion Elec Steel Corp/greengarden Ave | Erie | PA | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
Universal Stainless & Alloy Products INC | Bridgeville | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| VCVictaulic Co/forks Facility | Easton | PA | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
West Phila. Bronze Co., INC | Chester | PA | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| BTBerk Tek Llc/new Holland | New Holland | PA | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| CSClarion Sintered Metals | Ridgway | PA | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| EMEagle Metals-office Bldg | Leesport | PA | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| FFFlury Foundry CO - Lancaster Facility | Lancaster | PA | Primary Metal Manufacturing331529 | 1-19 | ◐ LIKELY ACTIVE |
| FIFranklin Ind Co/franklin | Franklin | PA | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| GIGarfield Industries | Philadelphia | PA | Primary Metal Manufacturing331419 | 20-99 | ◐ LIKELY ACTIVE |
| GSGautier Steel Holdings Inc/gautier Steel Johnstown | Johnstown | PA | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| GPGupta Permold | Pittsburgh | PA | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| HIHofmann Ind Inc/sinking Spring | Sinking Spring | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| LALaurel Aluminum Casting CO | Glassport | PA | Primary Metal Manufacturing331521 | 1-19 | ◐ LIKELY ACTIVE |
| LFLincoln Foundry Inc/erie | Erie | PA | Primary Metal Manufacturing331492 | 20-99 | ◐ LIKELY ACTIVE |
| RMReed Mfg/erie | Erie | PA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |