| ATAmg Titanium LLC | New Castle, PA | Chemical Manufacturing325180 | — | ◇ UNVERIFIED |
| APAti Precision Finishing LLC - Monaca | Monaca, PA | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| APAti Precision Finishing LLC - Rochester Facility | Rochester, PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| APAti Precision Finishing LLC - Zelienople | Zelienople, PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BIBpi INC - New Castle Plant | New Castle, PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CCChase Corporation/blawnox | Blawnox, PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| CCChase CORP Zeta | Pittsburgh, PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| DIDuctmate Industries INC | Monongahela, PA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| DPDura-bond Pipe 1 LLC | Mckeesport, PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| DIDynamet Incorporated | Washington, PA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| EPExport Plt | Export, PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| FCFbc Chemical CORP. | Mars, PA | Petroleum and Coal Products Manufacturing324122 | — | ◇ UNVERIFIED |
| FPFulmer / Perma Cast a Division of Motive Power, INC | Export, PA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
 General Carbide CORP | Greensburg, PA | Machinery Manufacturing333511 | — | ◇ UNVERIFIED |
| HAHuntsman Advance Materials, LLC | Harrison City, PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| ITIndustrial Terminal Systems, INC. | Pittsburgh, PA | Petroleum and Coal Products Manufacturing324199 | — | ◇ UNVERIFIED |
| JIJsp Intl Mfg | Butler, PA | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| KRKeystone Rustproofing INC | Arnold, PA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
 Kopp Glass Inc/pgh | Swissvale, PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| MAMarathon Ashland Petro Floreffe Term/asp | Jefferson, PA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MIMcc Intl INC | Cecil, PA | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| NGNational Gypsum - Fedxcorp | Shippingport, PA | Nonmetallic Mineral Product Manufacturing327420 | — | ◇ UNVERIFIED |
| NPNortheast Paving Bridgeville Plt | Bridgeville, PA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| OSOberg Stamping & Tech Center | Sarver, PA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| OSOneal Steel INC | Ambridge, PA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PKPrecision Kidd Steel CO | Aliquippa, PA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| PCPressure Chem Co/pgh | Pittsburgh, PA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| QWQuality Wood Treating Company Incorporated | Fombell, PA | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| RBRedland Brick Inc/harmar Plt | Cheswick, PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RFRobinson Fans | Zelienople, PA | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| SGStoelzle Glass USA Inc/monaca Plt | Monaca, PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
 Superior Forge & Steel CO. | New Castle, PA | Machinery Manufacturing333519 | — | ◇ UNVERIFIED |
| Superior Forge & Steel Corporation (pittsburgh, Pa) | Pittsburgh, PA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| TMTech Met INC | Donora, PA | Chemical Manufacturing325991 | — | ◇ UNVERIFIED |
| TMTech Met Inc/glassport | Glassport, PA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| TSThe Sherwin-williams CO | Pittsburgh, PA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| TTThe Techs - Nextech Plant | Turtle Creek, PA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| TVThe Valvoline Company | Rochester, PA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| VIVerichem INC | Pittsburgh, PA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| WEWestinghouse Elec CO - Specialty Metals Plant | Blairsville, PA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| WSWhemco Steel Castings Inc/west Homestead | Homestead, PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BBBlack Box Corporation of Pennsylvania | Lawrence, PA | Computer and Electronic Product Manufacturing334118 | — | ◐ LIKELY ACTIVE |
 Combustion Service & Equipment CO | Pittsburgh, PA | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| CIConsol Innovations LLC | Canonsburg, PA | Electrical Equipment, Appliance & Component Manufacturing335991 | — | ◐ LIKELY ACTIVE |
 Cytoagents INC | Allegheny, PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
 Detroit Switch INC | Pittsburgh, PA | Electrical Equipment, Appliance & Component Manufacturing335313 | — | ◐ LIKELY ACTIVE |
| EPEv Products INC | Zelienople, PA | Computer and Electronic Product Manufacturing334519 | — | ◐ LIKELY ACTIVE |
 Frazier-simplex INC | Washington, PA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| GBGil Berry & Associates, INC. | Mckeesport, PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| MWMaster Woodcraft/washington Plt | Washington, PA | Furniture and Related Product Manufacturing337110 | — | ◐ LIKELY ACTIVE |
