| PFPenn Foam Corporation | Allentown | PA | Plastics and Rubber Products Manufacturing326150 | 20-99 | ◐ LIKELY ACTIVE |
| PUPenn Union Corp/edinboro | Edinboro | PA | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| PSPhoenix Sintered Metals INC | Brockway | PA | Fabricated Metal Product Manufacturing332117 | 20-99 | ◐ LIKELY ACTIVE |
| PIPolyflo, INC. | Saint Clair | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| PPPost Precision Castings INC | Strausstown | PA | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| PKPrecision Kidd Steel CO | Aliquippa | PA | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| PRPrecision Rehab Manufacturing | Harborcreek, Township of | PA | Miscellaneous Manufacturing339113 | 20-99 | ◐ LIKELY ACTIVE |
| PMPrion Manufacturing | Oakdale | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| PTPrompton Tool INC | Honesdale | PA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| QSQuality Stone Veneer, INC. | Refton | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| RIReaxis INC | Mc Donald | PA | Chemical Manufacturing325130 | 20-99 | ◐ LIKELY ACTIVE |
| RLReichdrill LLC | Philipsburg | PA | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| RPReilly Plating CO INC | Nanticoke | PA | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
Reuss Industries, INC | Madison | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| RMRobertson Manufacturing INC | West Grove | PA | Textile Product Mills314912 | 20-99 | ◐ LIKELY ACTIVE |
| RProse plastic USA LLLP | Coal Center | PA | Plastics and Rubber Products Manufacturing326112 | 20-99 | ◐ LIKELY ACTIVE |
| RMRTI Machine Inc. | Polk | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
Schneider's Dairy, INC. | Pittsburgh | PA | Food Manufacturing311511 | 20-99 | ◐ LIKELY ACTIVE |
| SCScranton Craftsmen Incorporated | Throop | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| SMSeaway Mfg CORP | Erie | PA | Wood Product Manufacturing321911 | 20-99 | ◐ LIKELY ACTIVE |
| SPSharretts Plating CO INC | Emigsville | PA | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| SCSheffield Container Corporation | Sheffield | PA | Wood Product Manufacturing321920 | 20-99 | ◐ LIKELY ACTIVE |
| SISintergy, Inc, | Reynoldsville | PA | Fabricated Metal Product Manufacturing332117 | 20-99 | ◐ LIKELY ACTIVE |
| SLSintermet LLC | Kittanning | PA | Fabricated Metal Product Manufacturing332117 | 20-99 | ◐ LIKELY ACTIVE |
| SRSpecialty Ring Products INC | Bensalem | PA | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| SHStandard Horse Nail Corporation | New Brighton | PA | Fabricated Metal Product Manufacturing332510 | 20-99 | ◐ LIKELY ACTIVE |
| SIStandard Iron Works | Scranton | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| SPStellar Precision Components. LTD. | Jeannette | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ▲ REPORTED CLOSED |
| STSummit Trailers LLC | Schuylkill Haven | PA | Transportation Equipment Manufacturing336212 | 20-99 | ◐ LIKELY ACTIVE |
| SQSuperior Quartz Products INC | Bethlehem | PA | Electrical Equipment, Appliance & Component Manufacturing335139 | 20-99 | ◐ LIKELY ACTIVE |
| SWSuperior Woodcraft INC | Doylestown | PA | Furniture and Related Product Manufacturing337110 | 20-99 | ◐ LIKELY ACTIVE |
| TSTooling Specialists, INC. | Latrobe | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| TITrafcon Industries, Inc. | Mechanicsburg | PA | Miscellaneous Manufacturing339950 | 20-99 | ◐ LIKELY ACTIVE |
| TKTri Kris CO INC | Lansdale | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
Tsitouch, INC | Uniontown | PA | Computer and Electronic Product Manufacturing334118 | 20-99 | ◐ LIKELY ACTIVE |
| UPUltra Precision | Freeport | PA | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| UGUnited Gilsonite Labs | Dunmore | PA | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| VUVentana USA Building I | Export | PA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| VMVista Metals INC | Mc Keesport | PA | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| WFWengers Feed Mill INC - Hempfield | Lancaster | PA | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| WFWengers Feed Mill INC - Rheems | Rheems | PA | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| WSWescott Steel INC. | Trevose | PA | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| WPWestern Pennsylvania Steel Fabricating, INC. | New Castle | PA | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
West Phila. Bronze Co., INC | Chester | PA | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| WLWheeland Lumber CO. INC. | Liberty | PA | Wood Product Manufacturing321113 | 20-99 | ◐ LIKELY ACTIVE |
| WCWickett & Craig of America | Curwensville | PA | Leather and Allied Product Manufacturing316110 | 20-99 | ◐ LIKELY ACTIVE |
| WIWoodward, Incorporated | Mars | PA | Fabricated Metal Product Manufacturing332114 | 20-99 | ◐ LIKELY ACTIVE |
| XX-mark/belden | Washington | PA | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| YIYork-seaway Industrial Products, INC | Lake City | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| ADAcker Drill CO INC | Clarks Summit | PA | Machinery Manufacturing333131 | 20-99 | ◐ LIKELY ACTIVE |