| OPOrange Products, Inc. | Allentown | PA | Plastics and Rubber Products Manufacturing326160 | 20-99 | ◐ LIKELY ACTIVE |
| PPPace Precision Prod | Du Bois | PA | Machinery Manufacturing333511 | 1-19 | ◐ LIKELY ACTIVE |
| PEPallet Express Inc. | Easton | PA | Wood Product Manufacturing321920 | 20-99 | ◐ LIKELY ACTIVE |
| PCPannier Corporation-Sandusky | Pittsburgh | PA | Miscellaneous Manufacturing339940 | 1-19 | ◐ LIKELY ACTIVE |
| PPPa Perlite CORP | Bethlehem | PA | Nonmetallic Mineral Product Manufacturing327992 | 20-99 | ◐ LIKELY ACTIVE |
| PPPa Precision Cast Pa/lebanon City Plt | Lebanon | PA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| PCParmesan Crisp LLC | York | PA | Food Manufacturing311821 | 20-99 | ◐ LIKELY ACTIVE |
| PHPB Heat, LLC. | Bally | PA | Machinery Manufacturing333414 | 20-99 | ◐ LIKELY ACTIVE |
| PIPei/genesis, INC. | Philadelphia | PA | Computer and Electronic Product Manufacturing334417 | 100-499 | ◐ LIKELY ACTIVE |
| PWPeirce Welding & Fabricating Inc | Bethel | PA | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| PFPenna Flame Industries | Zelienople | PA | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| PCPenn Color INC | Doylestown | PA | Textile Mills313200 | 100-499 | ◐ LIKELY ACTIVE |
| PMPenn Machine CO INC | Johnstown | PA | Machinery Manufacturing333131 | 20-99 | ◐ LIKELY ACTIVE |
| PSPenn State Special Metals LLC | Koppel | PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| PTPenn Troy Manufacturing INC | Troy | PA | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| PWPenn Wood Products, Inc. | East Berlin | PA | Wood Product Manufacturing321113 | 100-499 | ◐ LIKELY ACTIVE |
| PCPerformance Castings, LLC | Erie | PA | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| PCPeterson Cartridge | Cranberry Township | PA | Fabricated Metal Product Manufacturing332992 | 20-99 | ◐ LIKELY ACTIVE |
Philadelphia Electrical Equipment CO | Aston | PA | Electrical Equipment, Appliance & Component Manufacturing335313 | 1-19 | ◐ LIKELY ACTIVE |
| PSPhiladelphia Scientific LLC | Montgomeryville | PA | Machinery Manufacturing333318 | 20-99 | ◐ LIKELY ACTIVE |
| PGPhillips Graphic Finishing LLC | Manheim | PA | Printing and Related Support Activities323120 | 20-99 | ◐ LIKELY ACTIVE |
| PFPhoenix Forging | Catasauqua | PA | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| PPPhoenix Packaging, INC. | Mount Joy | PA | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| PPPiad Precision Casting/hempfield Twp Plt | Greensburg | PA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| PRPik Rite INC | Lewisburg | PA | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
| PGPittsburgh Glass Works LLC | Tyrone | PA | Nonmetallic Mineral Product Manufacturing327215 | 100-499 | ◐ LIKELY ACTIVE |
| PPPittsburgh Plug & Products CORP | Evans City | PA | Fabricated Metal Product Manufacturing332510 | 20-99 | ◐ LIKELY ACTIVE |
| PPPolymer Products CO INC | Stockertown | PA | Chemical Manufacturing325991 | 20-99 | ◐ LIKELY ACTIVE |
Posey Dental Lab INC | Langhorne | PA | Miscellaneous Manufacturing339116 | 1-19 | ◐ LIKELY ACTIVE |
| PHPoultry Holdings Llc/mifflintown | Mifflintown | PA | Food Manufacturing311615 | — | ◐ LIKELY ACTIVE |
| PPowdersize | Quakertown | PA | Chemical Manufacturing325412 | — | ◐ LIKELY ACTIVE |
| PCPratt (carlisle Corrugating) LLC | Carlisle | PA | Paper Manufacturing322211 | 100-499 | ◐ LIKELY ACTIVE |
| PDPraxair Distr Inc/ Morrisville | Morrisville | PA | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| PSPraxair Surface Technologies-spray Plant | New Castle | PA | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| PAPrecision Assembly, INC | Willow Grove | PA | Chemical Manufacturing325320 | 1-19 | ◐ LIKELY ACTIVE |
| PCPrecision Coating Technology and Manufacturing Inc | Denver | PA | Fabricated Metal Product Manufacturing332812 | 1-19 | ◐ LIKELY ACTIVE |
| PFPrecision Finishing INC | Quakertown | PA | Chemical Manufacturing325611 | 20-99 | ◐ LIKELY ACTIVE |
| PTPressure Technology INC | Warminster | PA | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
| PIPrl Ind Inc/cornwall | Cornwall | PA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| PIPrl Ind Inc/lebanon | Lebanon | PA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
Prochemtech International, INC | Brockway | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| PGProcter & Gamble Mehoopany Mill | Mehoopany | PA | Paper Manufacturing322120 | — | ◐ LIKELY ACTIVE |
| PPPro Process, LLC | Saint Marys | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| PCPulva Corporation | Valencia | PA | Machinery Manufacturing333999 | 20-99 | ◐ LIKELY ACTIVE |
| PLPurolite LLC an Ecolab CO | Philadelphia | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| QEQnity Electronics Inc/towanda Plt | Towanda | PA | Chemical Manufacturing325992 | — | ◐ LIKELY ACTIVE |
| QGQuad Graphics Marketing Llc/chalfont | Chalfont | PA | Printing and Related Support Activities323111 | — | ◐ LIKELY ACTIVE |
| RIReddog Industries | Erie | PA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| RHRedman Homes INC | Ephrata | PA | Wood Product Manufacturing321991 | — | ◐ LIKELY ACTIVE |
| RIReitnouer INC. | Birdsboro | PA | Transportation Equipment Manufacturing336212 | 100-499 | ◐ LIKELY ACTIVE |