| NLNord Lock Group | Clinton, PA | Fabricated Metal Product Manufacturing332722 | — | ◐ LIKELY ACTIVE |
| NPNortheast Paving/adamsburg Asphalt Plt | Adamsburg, PA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| NFNorth Fayette Supply Llc/bullskin West Pad | Mount Pleasant, PA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| NWNucor Wire Prods Pa | New Salem, PA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| PIPace Industries | Loyalhanna, PA | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| PUPenn United Tech/carbide Group | Saxonburg, PA | Fabricated Metal Product Manufacturing332117 | — | ◐ LIKELY ACTIVE |
| PUPenn United Technology | Saxonburg, PA | Machinery Manufacturing333514 | — | ◐ LIKELY ACTIVE |
| PIPureon Inc/fayette Business Pk | Smithfield, PA | Nonmetallic Mineral Product Manufacturing327910 | — | ◐ LIKELY ACTIVE |
| RPRetal Pa LLC | Donora, PA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| SCSanyo Chem & Resin Inc/jefferson Site | West Elizabeth, PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| SWSeverstal Wheeling/allenport | Allenport, PA | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| SPSpecialty Printing Inc/charleroi | Charleroi, PA | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| SASquibb, Alvah M CO INC | Mckeesport, PA | Nonmetallic Mineral Product Manufacturing327211 | — | ◐ LIKELY ACTIVE |
| SCStone & CO Inc/charleroi Plt | Charleroi, PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SASuperior Adsorbents Mfg | Emlenton, PA | Chemical Manufacturing325130 | — | ◐ LIKELY ACTIVE |
| TSTech Spec Inc/derry | Derry, PA | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| TBTransflo Butler Terminal | Butler, PA | Food Manufacturing311613 | — | ◐ LIKELY ACTIVE |
| TPTresco Paving Asphalt Supply | Delmont, PA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| UCUnifirst CORP - New Kensington Facility | New Kensington, PA | Machinery Manufacturing333312 | — | ◐ LIKELY ACTIVE |
| WPWashington Penn Plas/v-bat | Washington, PA | Chemical Manufacturing325991 | — | ◐ LIKELY ACTIVE |
| WGW G Tomko INC | Finleyville, PA | Petroleum and Coal Products Manufacturing324110 | — | ◐ LIKELY ACTIVE |
| WWoodgrain/latrobe | Greensburg, PA | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
| YGYoung Galvanizing/pulaski Twp | Pulaski, PA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| ZFZambelli Fireworks Mfg CO | Edinburg, PA | Chemical Manufacturing325998 | — | ◐ LIKELY ACTIVE |
| AEAarcon Enterprises - Edgewater Steel | Oakmont, PA | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| APAbb Power Circut Breaker | North Huntingdon, PA | Electrical Equipment, Appliance & Component Manufacturing335313 | — | ◇ UNVERIFIED |
| ASAcme Stamping-wire Forming CO. | Pittsburgh, PA | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| APAcn Pgh Llc/gibsonia | Bakerstown, PA | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
Advanced Manufacturing Technol Ogies INC. | Export, PA | Computer and Electronic Product Manufacturing334418 | — | ◇ UNVERIFIED |
| AMAdvanced Metallurgy Incorporated Plant 4 | Mckeesport, PA | Fabricated Metal Product Manufacturing332117 | — | ◇ UNVERIFIED |
| AUAdvance USA | New Stanton, PA | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| AIAffival INC | Oakmont, PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| AIAffival Incorporated | New Kensington, PA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| APAir Products and Chemicals, INC. | Creighton, PA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| AIAirtek Inc/north Huntingdon Plt | North Huntingdon, PA | Machinery Manufacturing333994 | — | ◇ UNVERIFIED |
| ATAir Turbine Propeller | Zelienople, PA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ANAkers Natl Roll Co/hyde Park Foundry | Hyde Park, PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ASAk Steel Butler Works | Butler, PA | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| AMAliquippa Metal Recovery/slag Processing | Aliquippa, PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum Bagdad | Leechburg, PA | Paper Manufacturing322290 | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum CORP | Houston, PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum Cor/washington Flatroll | Washington, PA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum Llc/houston Fitch Works | Houston, PA | Primary Metal Manufacturing331100 | — | ◇ UNVERIFIED |
Allegheny Petroleum Products CO | Ambridge, PA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| AMAll Metals Recycling LLC | Rochester, PA | Machinery Manufacturing333519 | — | ◇ UNVERIFIED |
| ACAlumina Ceramic Components INC | Latrobe, PA | Primary Metal Manufacturing331313 | — | ◇ UNVERIFIED |
| ABAmer Bridge Holding Co/coraopolis | Coraopolis, PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| ACAmer Contract Sys Zelienople | Zelienople, PA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| AIAmerican Iron Oxide CO - Allenport Facility | Allenport, PA | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| ASAmerican Steel Processing and Systems CO | Pittsburgh, PA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |