| CCCarbon City Prods | Saint Marys | PA | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| MSMetaldyne Sintered St Marys | Saint Marys | PA | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| ASAam St Marys | Saint Marys | PA | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| GTGasbarre Thermal Processing Systems | Saint Marys | PA | Machinery Manufacturing333994 | — | ◇ UNVERIFIED |
| LLLedvance Llc/st Marys | Saint Marys | PA | Electrical Equipment, Appliance & Component Manufacturing335110 | — | ◇ UNVERIFIED |
| MTMatheson Tri Gas Saint Marys | Saint Marys | PA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| SPSinterite Products Div of Gpi | Saint Marys | PA | Machinery Manufacturing333994 | — | ◇ UNVERIFIED |
| SCStackpole Carbon CO Plant 02 | Saint Marys | PA | Electrical Equipment, Appliance & Component Manufacturing335991 | — | ◇ UNVERIFIED |
| AHAdvanced Heat Treating, INC. | Saint Marys | PA | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| AMArc Metals CORP | Saint Marys | PA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CCClear Creek Industries INC | Saint Marys | PA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| EDElite Downhole Tools and Manufacturing, LLC | Saint Marys | PA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ECElk County Machining, LLC | Saint Marys | PA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| MPMetal Powder Prod/st Marys | Saint Marys | PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| PNP/m National, INC. | Saint Marys | PA | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| QIQuala-die, INC. | Saint Marys | PA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| RIRohr Industries, INC. | Saint Marys | PA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SMSt. Marys Tool & Die Co., INC. | Saint Marys | PA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
