| BEBloom Engineering CO Inc/baldwin | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327120 | 100-499 | ◇ UNVERIFIED |
| BIBpi INC - New Castle Plant | New Castle | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| JCJuniata Concrete CO - Mifflintown Plant 2 | Mifflintown | PA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◇ UNVERIFIED |
| MRMon River Supply | West Elizabeth | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| PMPittsburgh Mobile Concrete INC. | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◇ UNVERIFIED |
| TRTc Redi Mix Inc/new Castle | New Castle | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◇ UNVERIFIED |
| ASAction Supply Darby Concrete Facility | Sharon Hill | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| AGAdvanced Glass Sys INC | Trumbauersville | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| APAe Polysilicon CORP. | Fairless Hills | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| AFAgc Flat Glass North America Quakertown Facility | Quakertown | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| AMAliquippa Metal Recovery/slag Processing | Aliquippa | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| ARAllegheny River Term/new Kensington Crushing Plt | New Kensington | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| AGAnchor Glass Connellsville Plt | Connellsville | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| AIAnker Industries | Turtle Creek | PA | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| APA P Green Refractories INC Sproul Pa Plant | Sproul | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| BVBig Valley Concrete - Mill Creek Facility | Mill Creek | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BCBrighton China CO Inc/beaver Falls | Beaver Falls | PA | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| BFBryan Frank, INC. | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BSB S Quarries INC | Montrose | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| BDBulk Dried Materials Llc/hartley St Plt | York | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| BDBulk Dried Materials Llc/workrite Masonry Plt | Thomasville | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| CGCap Glass Allentown Llc/northampton Plt | Northampton | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| CBCastle Bldr Supply New Castle | New Castle | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CMCertainteed - Mountaintop Facility | Mountain Top | PA | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| CSCollier Stone CO - Mcshane Quarry | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CLCon Lime Inc/bellefonte | Bellefonte | PA | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| DCDal-tile CORP Bendersville Plant | Bendersville | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| DCDlubak CORP | Freeport | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| DSDonaldson Supply CO | Canonsburg | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DIDre Iii Lp/jeannette | Jeannette | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| DRDuncannon Rmc Plt | Duncannon | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| EIEastern Ind INC Div Nesl CO Inc/oley | Oley | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| EGEdward Greene & Sons | Susquehanna | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| ESEldorado Stone Mfg Plt | Greencastle | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| EIEljer Inc/ford City Plt | Ford City | PA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| ECEssroc Cement CORP - Plant 3 | Nazareth | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| EMEssroc - Mcquiston Plt | Bessemer | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| FIFalconer-lewistown INC | Lewistown | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| FCFrank Casilio & Sons, INC | Allentown | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| FTFuzion Tech/freeport Brick Div | Freeport | PA | Chemical Manufacturing325194 | — | ◇ UNVERIFIED |
| FTFuzion Tech/kittanning Brick Div | Adrian | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GCGe CO Bridgeville Glass Plant | Bridgeville | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| GGGlen Gery Bigler Plt | Bigler | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GHGlen-gery Hanley Plt | Summerville | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GGGlen Gery York Brick Plt | York | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| GOGlenn O Hawbaker/canton Aggregate Plt 21 | Canton | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| GBGraffius Burial Vault Mfg Plt | Sinking Spring | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| GIGuardian Ind Corp/jefferson Hills | Clairton | PA | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| HKHaines & Kibblehouse/locust Ridge Quarry | Pocono Lake | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Svc/indiana Plt | Homer | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |