| SCStone & CO Masontown Plt | Masontown | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SDStone Depot/opern Burning/hilltown Twp | Perkasie | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| SWSuperior Well Svc Blacklick Fac | Black Lick | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◇ UNVERIFIED |
| SSSusquehanna Supply C/williamsport Plt | Williamsport | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| TBTecho Bloc Corp/plainfield Twp | Pen Argyl | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| TCTemporary Concrete Batch Plt | Midland Borough | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| THTerre Hill Concrete Prod Plant 2 | East Earl | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| THTerre Hill Concrete /terre Hill | Terre Hill | PA | Nonmetallic Mineral Product Manufacturing327332 | — | ◇ UNVERIFIED |
| TPTetlp - Per. Suct. Loop Terminal P-j | East Waterford | PA | Nonmetallic Mineral Product Manufacturing327000 | — | ◇ UNVERIFIED |
| TOTherm O Rock East Inc/donora Plt 2 | Donora | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| TITms Intl Llc/park Hill Slag Bank | Johnstown | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| TITrenwyth Industries - Trendstone Plant | Emigsville | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| TGTrulite Glass & Aluminum Solutions | Cheswick | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| USUnited Stone Veneer Stormwater | Middleburg | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| VCVictaulic CO Amer/palmer Plt | Easton | PA | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| VFVitro Flat Glass, LLC / Glass Business & Discovery Center | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327215 | — | ◇ UNVERIFIED |
| WDWaylite Div Ims/bethlehem | Bethlehem | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| WCWolyniec Const INC Stormwater | Williamsport | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| YBYork Bldg Prod Loucks Mill Road Block Plant | York | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| YBYork Building Products - New Holland Plant | New Holland | PA | Nonmetallic Mineral Product Manufacturing327331 | — | ◇ UNVERIFIED |
| ARAllentown RMC Plant | Allentown | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| AAlloy | Springdale | PA | Nonmetallic Mineral Product Manufacturing327331 | 1-19 | ◐ LIKELY ACTIVE |
| ASArch Street | Connellsville | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| ALArdex, L.P. Corporate Office | Aliquippa | PA | Nonmetallic Mineral Product Manufacturing327310 | 100-499 | ◐ LIKELY ACTIVE |
| ASArmina Stone | Cheswick | PA | Nonmetallic Mineral Product Manufacturing327991 | 100-499 | ◐ LIKELY ACTIVE |
| ARAshcom RMC Plant | Everett | PA | Petroleum and Coal Products Manufacturing324121 | 1-19 | ◐ LIKELY ACTIVE |
| ASAssured Solutions LLC | Philadelphia | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| BBBeavertown Block McKee, Pennsylvania | East Freedom | PA | Nonmetallic Mineral Product Manufacturing327331 | 1-19 | ◐ LIKELY ACTIVE |
| BBBeavertown Block Middleburg Pennsylvania | Middleburg | PA | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| BSBeyer Studio, Inc. | Philadelphia | PA | Nonmetallic Mineral Product Manufacturing327215 | 20-99 | ◐ LIKELY ACTIVE |
| BBlock | Springdale | PA | Nonmetallic Mineral Product Manufacturing327331 | 1-19 | ◐ LIKELY ACTIVE |
| BMBPI Minerals, New Castle Facility | New Castle | PA | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| BPBrayman Precast | Saxonburg | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| CCCardinal CT | Easton | PA | Nonmetallic Mineral Product Manufacturing327215 | 20-99 | ◐ LIKELY ACTIVE |
| CRChambersburg RMC | Chambersburg | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| CCharleroi | Charleroi | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| CNChemlime N.j. INC. | Pittsburgh | PA | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| CMConewago Manufacturing | Hanover | PA | Nonmetallic Mineral Product Manufacturing327390 | 100-499 | ◐ LIKELY ACTIVE |
| CConnellsville | Connellsville | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| CHCorporate Headquarters | Beaver Springs | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| CCountertops | Mechanicsburg | PA | Nonmetallic Mineral Product Manufacturing327991 | 20-99 | ◐ LIKELY ACTIVE |
| CGCP&P Greencastle | Greencastle | PA | Nonmetallic Mineral Product Manufacturing327390 | 1-19 | ◐ LIKELY ACTIVE |
| DGDaltile Gettysburg | Gettysburg | PA | Nonmetallic Mineral Product Manufacturing327120 | 20-99 | ◐ LIKELY ACTIVE |
| DCDan-Ber Concrete & Supply Inc | Mifflinville | PA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| DHDenver HMA Plant | Denver | PA | Petroleum and Coal Products Manufacturing324121 | 1-19 | ◐ LIKELY ACTIVE |
| DPDouglassville Plant | Douglassville | PA | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| DPDowningtown Plant | Downingtown | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| DDrivers/Mechanics | Springdale | PA | Nonmetallic Mineral Product Manufacturing327331 | 20-99 | ◐ LIKELY ACTIVE |
| DRDry Run RMC | Dry Run | PA | Nonmetallic Mineral Product Manufacturing327320 | 1-19 | ◐ LIKELY ACTIVE |
| ECEaston CT | Easton | PA | Nonmetallic Mineral Product Manufacturing327215 | 20-99 | ◐ LIKELY ACTIVE |