| CLCameron Lumber LLP | Homer City | PA | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| CFCampbell Fittings INC | Boyertown | PA | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| CBCannon Boiler Works | New Kensington | PA | Fabricated Metal Product Manufacturing332410 | 20-99 | ◐ LIKELY ACTIVE |
| CACargill Animal Nutrition | Chambersburg | PA | Food Manufacturing311119 | 1-19 | ◐ LIKELY ACTIVE |
Carpenter Technology CORP | Reading | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
Cer-mac INC | Telford | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| CCCheetah Chassis CORP | Berwick | PA | Machinery Manufacturing333924 | 100-499 | ◐ LIKELY ACTIVE |
| CDChurch & Dwight Company, INC. | York | PA | Chemical Manufacturing325411 | 500+ | ◐ LIKELY ACTIVE |
| CHClayton H Landis CO INC | Souderton | PA | Fabricated Metal Product Manufacturing332323 | 100-499 | ◐ LIKELY ACTIVE |
| CICleaveland/price INC | Trafford | PA | Electrical Equipment, Appliance & Component Manufacturing335313 | 100-499 | ◐ LIKELY ACTIVE |
| CFClemens Food Group/hatfield Plt | Hatfield | PA | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| CSCleveland Steel Container/quakertown | Quakertown | PA | Fabricated Metal Product Manufacturing332431 | 20-99 | ◐ LIKELY ACTIVE |
| CMConcast Metal Products CO | Mars | PA | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| CICork Industries INC. | Folcroft | PA | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| CBCorle Building Systems | Imler | PA | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| CFCorry Fabrication/corry | Corry | PA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| CRCorry Rubber | Corry | PA | Chemical Manufacturing325212 | 20-99 | ◐ LIKELY ACTIVE |
| CICounterTek Inc. | Ephrata | PA | Furniture and Related Product Manufacturing337110 | 20-99 | ◐ LIKELY ACTIVE |
| CICrafco, INC. - Allentown | Allentown | PA | Petroleum and Coal Products Manufacturing324121 | 20-99 | ◐ LIKELY ACTIVE |
| CFCraftweld Fabrication Co., INC. | Montgomeryville | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| CLCummings Lumber CO INC | Troy | PA | Wood Product Manufacturing321113 | 20-99 | ◐ LIKELY ACTIVE |
| DPDauphin Precision Tool LLC | Millersburg | PA | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
Dentsply Sirona INC | York | PA | Miscellaneous Manufacturing339114 | 100-499 | ◐ LIKELY ACTIVE |
| DMDor Mae Industries INC | Reading | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| DMDormont Mfg CO | Export | PA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| DBDsm Biomedical | Exton | PA | Miscellaneous Manufacturing339112 | — | ◐ LIKELY ACTIVE |
| DIDudlik Industries INC. | Hatboro | PA | Fabricated Metal Product Manufacturing332322 | 1-19 | ◐ LIKELY ACTIVE |
| DBDura Bond Pipe Llc/steelton | Steelton | PA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| DPDurawood Products Incorporated | Denver | PA | Wood Product Manufacturing321918 | 20-99 | ◐ LIKELY ACTIVE |
| DLDutchland LLC | Gap | PA | Nonmetallic Mineral Product Manufacturing327390 | 100-499 | ◐ LIKELY ACTIVE |
| DMDxtx Medical INC | Pittsburgh | PA | Chemical Manufacturing325411 | 1-19 | ◐ LIKELY ACTIVE |
Eagle Graphics, Inc. | Annville | PA | Printing and Related Support Activities323111 | 1-19 | ◐ LIKELY ACTIVE |
| ESEastern Sintered Alloys INC | Saint Marys | PA | Fabricated Metal Product Manufacturing332117 | 100-499 | ◐ LIKELY ACTIVE |
| ETEastern Technologies | Morgantown | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| EIEbinger Iron Works | Schuylkill Haven | PA | Fabricated Metal Product Manufacturing332323 | 20-99 | ◐ LIKELY ACTIVE |
| EMEby M H INC | Blue Ball | PA | Transportation Equipment Manufacturing336211 | 500+ | ◐ LIKELY ACTIVE |
| ELEcopax, LLC | Easton | PA | Paper Manufacturing322215 | 100-499 | ◐ LIKELY ACTIVE |
| EMElectri -Cord Manufacturing | Westfield | PA | Computer and Electronic Product Manufacturing334419 | 20-99 | ◐ LIKELY ACTIVE |
| EMEllwood Mill Products | New Castle | PA | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| ENEllwood Natl Forge | Irvine | PA | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| EFErie Forge & Steel INC | Erie | PA | Chemical Manufacturing325411 | 20-99 | ◐ LIKELY ACTIVE |
| EHErie Hard Chrome Inc/erie | Erie | PA | Fabricated Metal Product Manufacturing332813 | 1-19 | ◐ LIKELY ACTIVE |
| EMErie Molded Plastics, INC. | Erie | PA | Plastics and Rubber Products Manufacturing326160 | 20-99 | ◐ LIKELY ACTIVE |
| ESErie Strayer CO | Erie | PA | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
Evans Heat Treating Company | Huntingdon Valley | PA | Fabricated Metal Product Manufacturing332811 | 1-19 | ◐ LIKELY ACTIVE |
| EPEv Products INC Dba Kromek | Zelienople | PA | Computer and Electronic Product Manufacturing334519 | 20-99 | ◐ LIKELY ACTIVE |
| FMFairfield Manufacturing CO INC | Montoursville | PA | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| FUFci USA LLC | Etters | PA | Computer and Electronic Product Manufacturing334417 | 100-499 | ◐ LIKELY ACTIVE |
| FIFea Industries | Morton | PA | Miscellaneous Manufacturing339115 | 20-99 | ◐ LIKELY ACTIVE |
| FCFi-hoff Concrete Products INC | Johnstown | PA | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |