| DCDlubak CORP | Blairsville | — | ◇ UNVERIFIED |
| DTDon-len Trophies, INC. | Spring Mount | — | ◇ UNVERIFIED |
| DIDoren, INC. | Wampum | — | ◇ UNVERIFIED |
| DEDown East Fabrication, Inc. | Mechanicsburg | — | ◇ UNVERIFIED |
| DIDubrook INC. | Dubois | — | ◇ UNVERIFIED |
| DCDymond's Concrete Products, INC. | Fayetteville | — | ◇ UNVERIFIED |
| ECEagle Concrete Products, INC. | Somerset | — | ◇ UNVERIFIED |
| ESEastern Surfaces, INC. | Allentown | — | ◇ UNVERIFIED |
| EIEcumar INC | Middletown | — | ◇ UNVERIFIED |
| ESEldorado Stone, LLC | Greencastle | — | ◇ UNVERIFIED |
| EBEles Brothers Ready Mix Concrete | Monroeville | — | ◇ UNVERIFIED |
| ESElwood Staffing Services, INC. | Middletown | — | ◇ UNVERIFIED |
| EMEnvironmental Materials, LLC | Orwigsburg | — | ◇ UNVERIFIED |
| EPE P Henry Corporation | Parker Ford | — | ◇ UNVERIFIED |
| ECEssroc/nazareth Cement Plt 3 | Nazareth | — | ◇ UNVERIFIED |
| EIEternit, INC. | Reading | — | ◇ UNVERIFIED |
| EGEveryware Global | Monaca | — | ◇ UNVERIFIED |
| FMFabcon Mahanoy City Facility | Mahanoy City | — | ◇ UNVERIFIED |
| FCFaddis Concrete Products, Incorporated | Kutztown | — | ◇ UNVERIFIED |
| FFFed Fiberglass LLC | Fairless Hills | — | ◇ UNVERIFIED |
| FAfelt and fat llc | Philadelphia | — | ◇ UNVERIFIED |
| FCFilling Cleaners INC | Mountville | — | ◇ UNVERIFIED |
| FSFlabeg Solar US Corp/clinton | Clinton | — | ◇ UNVERIFIED |
| FSF&m Surfaces, INC. | Chambersburg | — | ◇ UNVERIFIED |
| FWFour Winds Concrete, INC. | Center Valley | — | ◇ UNVERIFIED |
| FGFreas Glass Works | Bridgeport | — | ◇ UNVERIFIED |
| FTFuzion Technologies, INC. | Freeport | — | ◇ UNVERIFIED |
| GMGavco Materials, Inc. | New Stanton | — | ◇ UNVERIFIED |
| GMGavco Materials, Inc. | Carmichaels | — | ◇ UNVERIFIED |
| GLGd Loke Jr. Stone, INC. | New Milford | — | ◇ UNVERIFIED |
| GBGeorge Brown & Son Glass Works, INC. | York | — | ◇ UNVERIFIED |
| GMGlass Molders Pottery Plastics | Albion | — | ◇ UNVERIFIED |
| GGGlen Gery Corporation | Summerville | — | ◇ UNVERIFIED |
| GTGolden Triangle Temp Concrete Batch Plt | Monessen | — | ◇ UNVERIFIED |
| GIGuardian Inds CORP | Lewistown | — | ◇ UNVERIFIED |
 Gulf Coast Wilbert INC. | Newtown | — | ◇ UNVERIFIED |
| HCHampton Concrete Products, INC. | Valencia | — | ◇ UNVERIFIED |
| HVHappy Valley Blended Products, LLC | Bellefonte | — | ◇ UNVERIFIED |
| HTHarmarville Temporary Batch Plant Project | Harmar, Township of | — | ◇ UNVERIFIED |
| HGHarrisburg Glass, LLC | Camp Hill | — | ◇ UNVERIFIED |
| HCHarsco CO Heckett Multiserv Plant 16 | Butler | — | ◇ UNVERIFIED |
| HMHarsco Metals Midland | Midland | — | ◇ UNVERIFIED |
| HMHarsco Metals/ Plt 53 | Koppel | — | ◇ UNVERIFIED |
| HMHeckett Multiserv Plant 18 a Harsco Company | Steelton | — | ◇ UNVERIFIED |
| HMHeidelberg Materials Ne Llc/rich Hill Quarry | Connellsville | — | ◇ UNVERIFIED |
| HMHeidelberg Materials US Cement Llc/nazareth | Nazareth | — | ◇ UNVERIFIED |
| HKHerb Kilmer & Sons Flagstone | Kingsley | — | ◇ UNVERIFIED |
| HCHercules Cement CO Llc/stockertown | Stockertown | — | ◇ UNVERIFIED |
| HCHessian Co., LTD. | Downingtown | — | ◇ UNVERIFIED |
| HWHickman Williams & Company | Etna | — | ◇ UNVERIFIED |
