| LDLeiby's Dairy Inc | Tamaqua | PA | Food Manufacturing311520 | 20-99 | ◐ LIKELY ACTIVE |
| LCLiberty Coating Company LLC | Morrisville | PA | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| LSLittell Steel Company, Inc. | New Brighton | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| MMMachined Metals Manufacturing | Collegeville | PA | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| MCMachining Concepts Inc. | Erie | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| MEMarkovitz Enterprises | Zelienople | PA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| MWMaster Woodcraft/washington Plt | Washington | PA | Furniture and Related Product Manufacturing337110 | 20-99 | ◐ LIKELY ACTIVE |
Mission First Tactical, LLC | Horsham | PA | Fabricated Metal Product Manufacturing332994 | 20-99 | ◐ LIKELY ACTIVE |
| MWMitre Wright Inc. | York | PA | Furniture and Related Product Manufacturing337212 | 20-99 | ◐ LIKELY ACTIVE |
| MDM&M Displays, Inc | Philadelphia | PA | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| MTMontgomery Truss & Panel -MAIN | Grove City | PA | Wood Product Manufacturing321214 | 20-99 | ◐ LIKELY ACTIVE |
| NANcc Automated Systems, INC. | Souderton | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| NSN.F. String & Son Inc. | Harrisburg | PA | Paper Manufacturing322230 | 20-99 | ◐ LIKELY ACTIVE |
| NCNitterhouse Concrete Products | Chambersburg | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| NNobelclad | Mount Braddock | PA | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| OWOlin Winchester LLC | Coal Township | PA | Miscellaneous Manufacturing339920 | 20-99 | ◐ LIKELY ACTIVE |
| OTOlson Technologies | Allentown | PA | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
Onexia, INC. | Exton | PA | Machinery Manufacturing333998 | 20-99 | ◐ LIKELY ACTIVE |
| OPOrange Products, Inc. | Allentown | PA | Plastics and Rubber Products Manufacturing326160 | 20-99 | ◐ LIKELY ACTIVE |
| PEPallet Express Inc. | Easton | PA | Wood Product Manufacturing321920 | 20-99 | ◐ 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 |
| 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 |
| PMPenn Machine CO INC | Johnstown | PA | Machinery Manufacturing333131 | 20-99 | ◐ LIKELY ACTIVE |
| PTPenn Troy Manufacturing INC | Troy | PA | Fabricated Metal Product Manufacturing332911 | 20-99 | ◐ LIKELY ACTIVE |
| PCPeterson Cartridge | Cranberry Township | PA | Fabricated Metal Product Manufacturing332992 | 20-99 | ◐ 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 |
| 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 |
| PFPrecision Finishing INC | Quakertown | PA | Chemical Manufacturing325611 | 20-99 | ◐ LIKELY ACTIVE |
| PTPressure Technology INC | Warminster | PA | Fabricated Metal Product Manufacturing332811 | 20-99 | ◐ LIKELY ACTIVE |
Prochemtech International, INC | Brockway | PA | Chemical Manufacturing325998 | 20-99 | ◐ 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 |
| RIReddog Industries | Erie | PA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| RPRetal Pa LLC | Donora | PA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| RUR.E. Uptegraff Manufacturing Company, LLC | Scottdale | PA | Electrical Equipment, Appliance & Component Manufacturing335311 | 20-99 | ◐ LIKELY ACTIVE |
| RIReynolds Iron Works/williamsport Plt | Williamsport | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| RRReynolds & Reynolds Electronics, Inc. | Bethlehem | PA | Electrical Equipment, Appliance & Component Manufacturing335999 | 20-99 | ◐ LIKELY ACTIVE |
| RIRichardsApex, Inc | Philadelphia | PA | Petroleum and Coal Products Manufacturing324191 | 20-99 | ◐ LIKELY ACTIVE |
| RMRichlyn Mfg Inc | Erie | PA | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| RMR&N Manufacturing, LLC | Pittsburgh | PA | Fabricated Metal Product Manufacturing332311 | 20-99 | ◐ LIKELY ACTIVE |
Rocal Corporation | Warrington | PA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| STSignal Technologies, Inc. | Erie | PA | Electrical Equipment, Appliance & Component Manufacturing335122 | 20-99 | ◐ LIKELY ACTIVE |