| HHorsham | Horsham | PA | Machinery Manufacturing333242 | 100-499 | ◐ LIKELY ACTIVE |
| HHpaca01 | Canonsburg | PA | Computer and Electronic Product Manufacturing334511 | 100-499 | ◐ LIKELY ACTIVE |
| HHpach01 | Charleroi | PA | Computer and Electronic Product Manufacturing334511 | 20-99 | ◐ LIKELY ACTIVE |
| IEI2r Electronics INC | Breinigsville | PA | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| JNJ&j Nationwide Enterprises Limited Liability Company | Canonsburg | PA | Computer and Electronic Product Manufacturing334118 | — | ◐ LIKELY ACTIVE |
| JEJli Electronics, INC | Harleysville | PA | Computer and Electronic Product Manufacturing334310 | — | ◐ LIKELY ACTIVE |
| KIKoaxis, INC | Schwenksville | PA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| KKongsberg | Johnstown | PA | Computer and Electronic Product Manufacturing334511 | 100-499 | ◐ LIKELY ACTIVE |
| LTLaurell Technologies CORP | Lansdale | PA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| LFLemont Furnace, PA (PA055) | Lemont Furnace | PA | Computer and Electronic Product Manufacturing334220 | 20-99 | ◐ LIKELY ACTIVE |
| LDLeonardo DRS - Johnstown Facility | Johnstown | PA | Computer and Electronic Product Manufacturing334511 | 100-499 | ◐ LIKELY ACTIVE |
| LDLeonardo DRS - Sidman Facility | Sidman | PA | Computer and Electronic Product Manufacturing334511 | 20-99 | ◐ LIKELY ACTIVE |
| LELiberty Electronics Inc - A8 | Franklin | PA | Computer and Electronic Product Manufacturing334419 | 20-99 | ◐ LIKELY ACTIVE |
| LELiberty Electronics, Inc - DeBence Rd | Franklin | PA | Computer and Electronic Product Manufacturing334419 | 100-499 | ◐ LIKELY ACTIVE |
| MIMagneton INC | Bethlehem | PA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| MCMayro Communications LLC | Ardmore | PA | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| MTMetaphase Technologies INC | Bristol | PA | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| MTMicrochip Technology Inc. Allentown | Allentown | PA | Computer and Electronic Product Manufacturing334413 | 20-99 | ◐ LIKELY ACTIVE |
| MTMicrochip Technology Inc. Norristown | Norristown | PA | Computer and Electronic Product Manufacturing334413 | 1-19 | ◐ LIKELY ACTIVE |
| MTMicrochip Technology Inc. Reading | Reading | PA | Computer and Electronic Product Manufacturing334413 | 20-99 | ◐ LIKELY ACTIVE |
| MSMicrosemi Soc CORP. | Allentown | PA | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| NINanomagnetics Instruments Usa, LLC | Easton | PA | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
| NNgms-j253 | Philadelphia | PA | Computer and Electronic Product Manufacturing334511 | 20-99 | ◐ LIKELY ACTIVE |
| OLOmicspcs LLC | Glen Rock | PA | Computer and Electronic Product Manufacturing334111 | — | ◐ LIKELY ACTIVE |
| OAOrbit Advanced Technologies, INC. | Warminster | PA | Computer and Electronic Product Manufacturing334515 | — | ◐ LIKELY ACTIVE |
| PCPa28 Corporate | Berwyn | PA | Computer and Electronic Product Manufacturing334513 | 100-499 | ◐ LIKELY ACTIVE |
| PPPa40 Process Instruments | Pittsburgh | PA | Computer and Electronic Product Manufacturing334513 | 100-499 | ◐ LIKELY ACTIVE |
| PLPa Lifeservers, INC. | Murrysville | PA | Computer and Electronic Product Manufacturing334510 | — | ◐ LIKELY ACTIVE |
| PWPA Worcester | Worcester | PA | Computer and Electronic Product Manufacturing334513 | 100-499 | ◐ LIKELY ACTIVE |
| PRPhilips Reedsville 1 | Reedsville | PA | Computer and Electronic Product Manufacturing334510 | 500+ | ◐ LIKELY ACTIVE |
| PRPhilips RIST | New Kensington | PA | Computer and Electronic Product Manufacturing334510 | 100-499 | ◐ LIKELY ACTIVE |
| PPittsburgh | Cranberry Township | PA | Computer and Electronic Product Manufacturing334513 | 100-499 | ◐ LIKELY ACTIVE |
| PGPrecision Guided Interventions, LLC | Philadelphia | PA | Computer and Electronic Product Manufacturing334510 | — | ◐ LIKELY ACTIVE |
| PSPT Site - Philadelphia, PA | Philadelphia | PA | Computer and Electronic Product Manufacturing334517 | 20-99 | ◐ LIKELY ACTIVE |
| QEQuintech Electronics and Communications, Inc | Pittsburgh | PA | Computer and Electronic Product Manufacturing334220 | 1-19 | ◐ LIKELY ACTIVE |
| RSRf Specialties of Pennsylvania INC | Ebensburg | PA | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| RBRgb Business Technology Solutions | Philadelphia | PA | Computer and Electronic Product Manufacturing334290 | — | ◐ LIKELY ACTIVE |
| SPSamtec Pennsylvania Cable | Royersford | PA | Computer and Electronic Product Manufacturing334417 | 20-99 | ◐ LIKELY ACTIVE |
| SSSamtec Signal Integrity | Mechanicsburg | PA | Computer and Electronic Product Manufacturing334417 | 20-99 | ◐ LIKELY ACTIVE |
| STSamtec Tooling Division | Erie | PA | Computer and Electronic Product Manufacturing334417 | 20-99 | ◐ LIKELY ACTIVE |
| SSSartorius Stedim North America, Inc. | New Oxford | PA | Computer and Electronic Product Manufacturing334513 | 20-99 | ◐ LIKELY ACTIVE |
| SISeakeeper, Inc PA | Leesport | PA | Computer and Electronic Product Manufacturing334513 | 100-499 | ◐ LIKELY ACTIVE |
| SCSemiconductor Components Industries LLC Mountain Top | Mountain Top | PA | Computer and Electronic Product Manufacturing334413 | 100-499 | ◐ LIKELY ACTIVE |
| SUSensus USA, INC. | Uniontown | PA | Computer and Electronic Product Manufacturing334514 | 100-499 | ◐ LIKELY ACTIVE |
| SISimco-Ion, Industrial Group | Hatfield | PA | Computer and Electronic Product Manufacturing334512 | 20-99 | ◐ LIKELY ACTIVE |
| SFSimple Foundry LLC | Sewickley | PA | Computer and Electronic Product Manufacturing334220 | — | ◐ LIKELY ACTIVE |
| SPSmithfield, PA (PA054) | Smithfield | PA | Computer and Electronic Product Manufacturing334220 | 100-499 | ◐ LIKELY ACTIVE |
| SCSpang & Company Corporate/Magnetics Division Headquarters | Pittsburgh | PA | Computer and Electronic Product Manufacturing334416 | 20-99 | ◐ LIKELY ACTIVE |
| SCSynova Consulting INC | Chalfont | PA | Computer and Electronic Product Manufacturing334111 | — | ▲ REPORTED CLOSED |
| TWTaylor Way Labs, LLC | Monroeville | PA | Computer and Electronic Product Manufacturing334512 | — | ◐ LIKELY ACTIVE |