| IEImport Export Tire Company INC. | Latrobe | — | ◇ UNVERIFIED |
| IFIndustrial Fabrications, INC. | Williamsport | — | ◇ UNVERIFIED |
| JFJag Fabrication | Moon Township | — | ◇ UNVERIFIED |
| JKJ & K Foam Fabricating, INC. | Pottstown | — | ◇ UNVERIFIED |
| JIJml Industries INC. | Hazleton | — | ◇ UNVERIFIED |
| JMJm Manufacturing Company, INC. | Cochranton | — | ◇ UNVERIFIED |
| JIJsp International, INC. | Butler | — | ◇ UNVERIFIED |
| KLKarchner Logistics & Distribution Services | Hazleton | — | ◇ UNVERIFIED |
| KPKenson Plastics | Warrendale | — | ◇ UNVERIFIED |
| KPKey Plastics, L.l.c.--felton | Felton | — | ◇ UNVERIFIED |
| KPKey Plastics Plastic Mfg York | York | — | ◇ UNVERIFIED |
| KCKeystone Container, LLC | Reading | — | ◇ UNVERIFIED |
| LELake Erie Rubber Works, INC. | Erie | — | ◇ UNVERIFIED |
| LILatrobe Injection Molding INC | Latrobe | — | ◇ UNVERIFIED |
| LSL S Wimmer Machine CO | Perkasie | — | ◇ UNVERIFIED |
| MPMaloney Plastics, INC. | Meadville | — | ◇ UNVERIFIED |
| MCMarkel Corporation | Plymouth Meeting | — | ◇ UNVERIFIED |
| MMMaugus Manufacturing Incorporated | Lancaster | — | ◇ UNVERIFIED |
| MCMaui Cup a Division of Letica Corporation | Pittston | — | ◇ UNVERIFIED |
| MTMccarthy Tires | Somerset | — | ◇ UNVERIFIED |
| MNMeadville New Products, INC. | Meadville | — | ◇ UNVERIFIED |
| MPMeridian Precision INC | Pine Grove | — | ◇ UNVERIFIED |
| MPMetso Paper Usa, Incorporated | Clarks Summit | — | ◇ UNVERIFIED |
| MIMicor INC. | Allison Park | — | ◇ UNVERIFIED |
| MPMiller Plastic Products, INC. | Burgettstown | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass Companies | Linesville | — | ◇ UNVERIFIED |
| MIMoldsmith, INC. | Warren | — | ◇ UNVERIFIED |
| MQM & Q Plastic Products Corporation | Schuylkill Haven | — | ◇ UNVERIFIED |
| MPMulti Plastics INC | Saegertown | — | ◇ UNVERIFIED |
| MMulti-products | Erie | — | ◇ UNVERIFIED |
| MPMunot Plastics, INC. | Erie | — | ◇ UNVERIFIED |
| NMNational Molding LLC | Ambridge | — | ◇ UNVERIFIED |
| NPNatural Pack INC | Reading | — | ◇ UNVERIFIED |
| NANew Age Industries, INC. | Southampton | — | ◇ UNVERIFIED |
| NCNew Castle Power Llc/new Castle Generating Station | West Pittsburg | — | ◇ UNVERIFIED |
| NPNolan Products Inc. | Erie | — | ◇ UNVERIFIED |
| NPNortheastern Plastics, INC. | Scranton | — | ◇ UNVERIFIED |
| NMNov Mount Union | Mount Union | — | ◇ UNVERIFIED |
| NCNvf CO | Willow Grove | — | ◇ UNVERIFIED |
| NPNytef Plastics, LTD | Bensalem | — | ◇ UNVERIFIED |
| OPOmega Plastics, LLC | Erie | — | ◇ UNVERIFIED |
| PTPackaging Technology, INC. | Exton | — | ◇ UNVERIFIED |
| PWPac Worldwide | Bethlehem | — | ◇ UNVERIFIED |
| PPPalmer Plastics, INC. | Easton | — | ◇ UNVERIFIED |
| PPPanthera Products, INC. | Latrobe | — | ◇ UNVERIFIED |
| PDParamount Die Corporation | Edinboro | — | ◇ UNVERIFIED |
| PNPeoples Natural Gas CO Llc/roaring Run Sta | Apollo | — | ◇ UNVERIFIED |
| PIPga, INC | Freeland | — | ◇ UNVERIFIED |
| PPPIANCA Packaging LLC | Whitehall | — | ◇ UNVERIFIED |
| PPPlaskolite Pa | Scranton | — | ◇ UNVERIFIED |
