| BBetco-easton | Easton | PA | Paper Manufacturing322219 | 20-99 | ◐ LIKELY ACTIVE |
| BABonsal American INC | Bristol | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| DCDal-tile CORP Lincolnway East Plant | Gettysburg | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| DLDutchland LLC | Gap | PA | Nonmetallic Mineral Product Manufacturing327390 | 100-499 | ◐ LIKELY ACTIVE |
| FCFi-hoff Concrete Products INC | Johnstown | PA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| GCGlen-gery CORP Mid Atlantic Plant | Shoemakersville | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| GGGlen Gery Corporation Hanley Plant | Summerville | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| GCGlobal Custom Decorating | Curwensville | PA | Nonmetallic Mineral Product Manufacturing327211 | 20-99 | ◐ LIKELY ACTIVE |
| GIGraymont Industries | Pleasant Gap | PA | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| HMHeidelberg Materials US Cement Llc/ Nazareth | Nazareth | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| HKH & K Group/ Stockertown | Stockertown | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| IKIpsco Koppel Tubulars CORP | Koppel | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| KCKeystone Cement CO | Bath | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| LCLehigh Cement CO LLC | York | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| MVMcavoy Vitrified Brick CO | Phoenixville | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| MMclanahan/hollidaysburg | Hollidaysburg | PA | Nonmetallic Mineral Product Manufacturing327400 | 100-499 | ◐ LIKELY ACTIVE |
| MUMersen Usa/st Marys | Saint Marys | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| MPMonarch Products INC | York Haven | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| MAMorgan Am&t Coudersport Site | Coudersport | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| OGOwens-brockway Glass Container INC Plant 19 | Brockway | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◐ LIKELY ACTIVE |
| PGPittsburgh Glass Works LLC | Tyrone | PA | Nonmetallic Mineral Product Manufacturing327215 | 100-499 | ◐ LIKELY ACTIVE |
| PPPolymer Products CO INC | Stockertown | PA | Chemical Manufacturing325991 | 20-99 | ◐ LIKELY ACTIVE |
| SCSika Corporation | Fairless Hills | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| TFTeledyne Flir Defense INC | Freeport | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| TITms International Llc/new Castle Plant | New Castle | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◐ LIKELY ACTIVE |
| VAVitro Architectural Glass (pa) | Carlisle | PA | Nonmetallic Mineral Product Manufacturing327211 | — | ◐ LIKELY ACTIVE |
| WBWatsontown Brick Co/watsontown Plt | Watsontown | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◐ LIKELY ACTIVE |
| WRWorld Resources CO | Pottsville | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◐ LIKELY ACTIVE |
| AWArmstrong World Industries | Marietta | PA | Nonmetallic Mineral Product Manufacturing327420 | — | ◐ LIKELY ACTIVE |
| CGCabinetworks Group Inc/thompsontown | Thompsontown | PA | Nonmetallic Mineral Product Manufacturing327993 | — | ◐ LIKELY ACTIVE |
| CICardinal Ig Company (mountain Top) | Mountain Top | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◐ LIKELY ACTIVE |
| EIErsvin Inds. INC. Amasteel Div. | Butler | PA | Nonmetallic Mineral Product Manufacturing327910 | — | ◐ LIKELY ACTIVE |
| HMHarsco Metals - Butler | Butler | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| PEPgh Elec Insulation Inc/munhall | Munhall | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◐ LIKELY ACTIVE |
| SGSaint Gobain Abrasives Montgomeryville Plt | Montgomeryville | PA | Nonmetallic Mineral Product Manufacturing327910 | — | ◐ LIKELY ACTIVE |
| UEUnion Electric Steel CORP | Burgettstown | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| APAds Pipe Dba Frederick Precast | Greencastle | PA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| BCBall Corporation | Pittston | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| BIBpi INC - New Castle Plant | New Castle | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| CCCayuga Concrete Pipe | Croydon | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| DLDutchland LLC | Christiana | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| ECEastern Concrete Materials / Sharon Hill | Sharon Hill | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
Kopp Glass Inc/pgh | Swissvale | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| NGNational Gypsum - Fedxcorp | Shippingport | PA | Nonmetallic Mineral Product Manufacturing327420 | — | ◇ UNVERIFIED |
| RBRedland Brick Inc/harmar Plt | Cheswick | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| SGStoelzle Glass USA Inc/monaca Plt | Monaca | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| UGUS Gypsum - Washingtonville Plant | Danville | PA | Nonmetallic Mineral Product Manufacturing327420 | — | ◇ UNVERIFIED |
| CCContinental Concrete Products, Inc | Pottstown | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
Dubois Granite & Quartz LLC | Dubois | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| GBGil Berry & Associates, INC. | Mckeesport | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |