| OGO-i Glass, Inc/owens Brockway Glass Container Plt 19 | Brockport | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| OOldcastle | Lebanon | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
 Oldcastle Infrastructure Inc/telford | Telford | PA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| OMOnur Marble & Granite Inc | Bensalem | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| OMOnur Marble & Granite Inc | Bristol Township | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| OPOrange Pavers LLC | Stroudsburg | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| OSOutcast Studios, LLC | Philadelphia | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| PSPaguay Stone | New Milford | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PSPanel Solutions, INC. | Hazleton | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| PMParmer Metered Concrete INC | Hershey | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PCPatn Capital LLC | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PCPATN Captial LLC | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| PDPenn Dixie Commercial Park | Nazareth | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PIPennsylvania Insulating Glass CORP. | Lewistown | PA | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| PSPennsy Supply INC Landisville Facility | Mount Joy | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| PEPerez Equipment, LLC | Kingsley | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PCPfaltzgraff CO Distribution Center | York | PA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| PGPhillips Granite INC. | Greensburg | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PSPinnacle Stone Products, LLC | Parkesburg | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PGPly Gem Industries, INC. | Middleburg | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| PGPremier Granite & Marble, Inc. | Pen Argyl | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PGPremier Granite & Marble, Inc. | Pen Argyl | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| PAProduction Abrasives, INC. | Hamilton | PA | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| PIProposed Industrial Development | Philadelphia | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| QTQuanta Technologies, Inc. | Lancaster | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| QCQuarry Cut, INC. | Parker Ford | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RIRBF Industries, LLC | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| RRRed Rabbit Equity, LP | Jeannette | PA | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| RPResco Products, INC. | Tarentum | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| RBRiverview Block INC. | Berwick | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| RLRock Lake Incorporated | Lake Como | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RRRock Ridge Stone, Incorporated | Montrose | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RORohn Ornamental Concrete INC | Bethlehem | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RGRome Granite and Tile LLC | Allentown | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RGRoth Glass CO. | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| RPR P Engineering | Morton | PA | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| RSR.w. Sidley, INC. | Youngwood | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| RSR.w. Sidley, INC. | Slippery Rock | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| SCSaint-gobain Ceramic Materials | Latrobe | PA | Nonmetallic Mineral Product Manufacturing327125 | — | ◇ UNVERIFIED |
| SISay-core, INC. | Portage | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| SBSchless Bottles Inc. | Allentown | PA | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| SCSemper Concrete Products | Butler | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| SASeverino Addesso and Son, INC. | Colmar | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SESeyler Enterprises INC. | Jersey Shore | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SBSeymore Bros, INC. | Altoona | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| SBShaffer Block & Concrete Products | Somerset | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| SLSilver Lake Studios | Fombell | PA | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| SCSilvi Concrete of Chester, LLC | King of Prussia | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSilvi Concrete of Downingtown | Downingtown | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SCSilvi Concrete of Limerick | Limerick | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
