 High Concrete Group, LLC | Denver | 100–499 | ● ACTIVE |
 Lancaster Lime Works INC | Willow Street | — | ● ACTIVE |
| DLDutchland LLC | Gap | 100–499 | ◐ LIKELY ACTIVE |
| AWArmstrong World Industries | Marietta | — | ◐ LIKELY ACTIVE |
| DLDutchland LLC | Christiana | — | ◇ UNVERIFIED |
| EEEvans Eagle Burial Vaults Mfg Leola | Leola | — | ◐ LIKELY ACTIVE |
| HHHenry H. Ross and Son, INC. | Lititz | 20–99 | ◐ LIKELY ACTIVE |
| YBYork Building Products CO Inc/new Holland | New Holland | — | ◐ LIKELY ACTIVE |
| PSPennsy Supply Inc/landisville Quarry | Landisville | — | ◐ LIKELY ACTIVE |
| RQRohrers Quarry/lititz | Lititz | — | ◐ LIKELY ACTIVE |
| THTerre Hill Concrete Products Plant 1 & 3 | Terre Hill | — | ◐ LIKELY ACTIVE |
| EIEastern Ind Asphalt | Lancaster | — | ◇ UNVERIFIED |
| MCMellott Co/cedar Hill Quarry | Peach Bottom | — | ◇ UNVERIFIED |
| NCNesl CO INC Dba Martin Limestone Inc/denver & Kurtz Plt | Denver | — | ◇ UNVERIFIED |
| NCNesl CO INC Dba Martin Limestone Inc/east Earl Weaverland | New Holland | — | ◇ UNVERIFIED |
| THTerre Hill Concrete Prod Plant 2 | East Earl | — | ◇ UNVERIFIED |
| THTerre Hill Concrete /terre Hill | Terre Hill | — | ◇ UNVERIFIED |
| YBYork Building Products - New Holland Plant | New Holland | — | ◇ UNVERIFIED |
| LLLong Lane, PA | Lancaster | 1–19 | ◐ LIKELY ACTIVE |
| NHNew Holland RMC | New Holland | 1–19 | ◐ LIKELY ACTIVE |
| P2Plant 2 | East Earl | 20–99 | ◐ LIKELY ACTIVE |
| WSWeaver Superior Walls, LLC | Ephrata | 20–99 | ◐ LIKELY ACTIVE |
| BSBello Stone LLC | Drumore | — | ◇ UNVERIFIED |
| BMBravo Marble and Granite, INC. | Lancaster | — | ◇ UNVERIFIED |
| CBCovered Bridge Precast | Ephrata | — | ◇ UNVERIFIED |
| FCFilling Cleaners INC | Mountville | — | ◇ UNVERIFIED |
| KFKauffman Family LP Land Development Renewal | Sadsbury, Township of | — | ◇ UNVERIFIED |
| LSLiving Stones Masonry | Columbia | — | ◇ UNVERIFIED |
| NSNatural Stoneworks | Lancaster | — | ◇ UNVERIFIED |
| NCNesl CO Inc/ Earl Twp Hinkletown Asphalt Plant and Quarry | Ephrata | — | ◇ UNVERIFIED |
| PSPennsy Supply INC Landisville Facility | Mount Joy | — | ◇ UNVERIFIED |
| QTQuanta Technologies, Inc. | Lancaster | — | ◇ UNVERIFIED |
| THTerre Hill Silo Company INC | Terre Hill | — | ◇ UNVERIFIED |
