| WFWilbert Funeral Services Blairsville | Blairsville | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| WIWilkes-Barre IG | Mountain Top | PA | Nonmetallic Mineral Product Manufacturing327215 | 100-499 | ◐ LIKELY ACTIVE |
| DRDevido Ranier Stone CO | New Castle | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| JKJ.j. Kennedy, INC. | Fombell | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| 2M281 Midway Road | Bethel | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| 4C4D Countertops LLC | Bradford | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| ASAbc/warren/amplex Superabrasives | Olyphant | PA | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
 A.c. Miller Concrete Products, INC. | Blairsville | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| ARAdvanced Refractory Technologies | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| AMAllegheny Mineral Corp/slippery Rock | Kittanning | PA | Nonmetallic Mineral Product Manufacturing327410 | — | ◇ UNVERIFIED |
| AGAll Granite and Marble Corporation | Stroudsburg | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| AIAlmatis Inc/neville Grinding Ctr | Leetsdale | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| AHAmc Home Remodelers | Philadelphia | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| APAmerican Precision Glass Corporation | Duryea | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| ATAmerican Tank & Concrete Service | Greensburg | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ASAppalachian Stone INC. | Lemoyne | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| ASAppleridge Stone International, INC. | Blairsville | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| APA P, Rhodes LLC | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327112 | — | ◇ UNVERIFIED |
| ACArrow Concrete Company | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ACAtlantic Custom Granite & Marble, INC. | Dallastown | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| ASAyers Supply, Inc. | Clarks Summit | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
 Baltimore Fabrication | Emigsville | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| BIBay Industries INC. | Easton | PA | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| BIBay Industries Inc., Dba Bay Insulation of Pennsylvania | Easton | PA | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| BMBella Marble and Granite, INC | Warminster | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| BSBello Stone LLC | Drumore | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| BMBerta Marble Design LLC | Huntingdon Valley | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| BWBlairsville Wilbert Vault Company | Mount Pleasant | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| BMBpb Mfg Inc/ Harding | Pittston | PA | Nonmetallic Mineral Product Manufacturing327993 | — | ◇ UNVERIFIED |
| BMBravo Marble and Granite, INC. | Lancaster | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| BCBrentanos Concrete Connection, INC. | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| BGBrian Giniewski LLC | Philadelphia | PA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| BSButler Stone Craft, INC. | Cabot | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CLCardinal Lg Company | Jessup | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| CBCarlini Brothers CO. | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CMCatawissa Monument, INC. | Catawissa | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CCCayuga Concrete Pipe | New Britain | PA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| CCCellular Concrete Solutions LLC | Allentown | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CSCeltic Stone Granite and Tile LLC | Allentown | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CCCentermoreland Concrete Products | Tunkhannock | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CRCe Ready Mix/irwin Concrete | Irwin | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| CLChattanooga Labeling Systems | Galeton | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| CSConcrete Safety Systems, LLC | Bethel | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CSConcrete Step Units INC | Scranton | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CCContract Crushing Const - Patton Site | Belle Vernon | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| CACorning Asahi Video Prod Co/state College | State College | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| CGCorporate Glass INC. | Erie | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| CBCovered Bridge Precast | Ephrata | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CBCreamton Block, LLC | Lake Como | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| CCunard | Morrisdale | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
