| SWSomerset Welding & Steel/somerset | Somerset | — | ◐ LIKELY ACTIVE |
| SMSupreme Mid-atlantic CORP | Jonestown | — | ◐ LIKELY ACTIVE |
| SSSwede Square Cleaner | Norristown | — | ◐ LIKELY ACTIVE |
| TCTank Car Corporation of America | Oreland | — | ◐ LIKELY ACTIVE |
| TBThe Boeing Company, Defense, Space & Security, Rotorcraft Programs, Philadelphia | Ridley Park | — | ◐ LIKELY ACTIVE |
| TCTownship Clnr/bala Cynwyd | Bala Cynwyd | — | ◐ LIKELY ACTIVE |
| AIAcf Ind Llc/ Milton | Milton | — | ◇ UNVERIFIED |
| ASAdvantage Sales Ltp | Lock Haven | — | ◇ UNVERIFIED |
| ASAll Steel INC | West Hazleton | — | ◇ UNVERIFIED |
| AIAltec Ind Inc/plains | Plains | — | ◇ UNVERIFIED |
| ALAmerican Lafrance LLC | Ephrata | — | ◇ UNVERIFIED |
| BTBelmont Trailers LLC | Leola | — | ◇ UNVERIFIED |
| BEBoyesen Engineering | Lenhartsville | — | ◇ UNVERIFIED |
| BMBri Mar Mfg Llc/s Main St Plt | Chambersburg | — | ◇ UNVERIFIED |
| CTCampbell Transportation Company, INC. | Dunlevy | — | ◇ UNVERIFIED |
| CACardone American St Complex | Philadelphia | — | ◇ UNVERIFIED |
| CICardone Industries | Philadelphia | — | ◇ UNVERIFIED |
| CPChampion Parts Bldrs | Lock Haven | — | ◇ UNVERIFIED |
| CPChampion Parts INC | Beech Creek | — | ◇ UNVERIFIED |
| CSClairton Shipyard | Clairton | — | ◇ UNVERIFIED |
| CIColumbia Ind/berwick Plt | Berwick | — | ◇ UNVERIFIED |
| CRCurry Rail Services | Hollidaysburg | — | ◇ UNVERIFIED |
| CSCycling Sports Group Inc/bedford | Bedford | — | ◇ UNVERIFIED |
| DPDelbar Prod Inc/perkasie | Perkasie | — | ◇ UNVERIFIED |
| EMEastern Manufacturing Inc., LLC | Langhorne | — | ◇ UNVERIFIED |
| FMFederal Mogul Corp/boyertown Lighting Pl | Boyertown | — | ◇ UNVERIFIED |
| FIFtca Inc/coleman Camping Trailers | Somerset | — | ◇ UNVERIFIED |
| GMGapvax Mfg/johnstown | Johnstown | — | ◇ UNVERIFIED |
| GCGeneral Cable Industries INC | Altoona | — | ◇ UNVERIFIED |
| GMGeneral Motors LLC | Langhorne | — | ◇ UNVERIFIED |
| JIJlg Ind Inc/state Line Wrecker Plt | Greencastle | — | ◇ UNVERIFIED |
| KKme | Nesquehoning | — | ◇ UNVERIFIED |
| LCLiberty Cleaners INC - Wikes Barre Facility | Wilkes Barre | — | ◇ UNVERIFIED |
| LALockheed Aeroparts INC | Johnstown | — | ◇ UNVERIFIED |
| LMLockheed Martin Aeroparts INC | Johnstown | — | ◇ UNVERIFIED |
| LMLockheed Martin Sikorsky Commercial INC | Coatesville | — | ◇ UNVERIFIED |
| MAManheim Area Economic Dev CORP | Manheim | — | ◇ UNVERIFIED |
| MVManley Valve | York | — | ◇ UNVERIFIED |
| MCMasters Clnr/johnstown | Johnstown | — | ◇ UNVERIFIED |
| OPOppenheimer Precision Prod INC | Horsham | — | ◇ UNVERIFIED |
| RPReitnouer Production Facility | Birdsboro | — | ◇ UNVERIFIED |
| SCSikorsky Commercial INC | Coatesville | — | ◇ UNVERIFIED |
| SCSonny Clnr/trappe | Trappe | — | ◇ UNVERIFIED |
| SMSpartan Motors USA INC | Ephrata | — | ◇ UNVERIFIED |
| SMSupreme Mid-atlantic Plant 2 | Jonestown | — | ◇ UNVERIFIED |
| TMThiele Mfg/windber Plt | Windber | — | ◇ UNVERIFIED |
| UDUnited Defense LP - Ground Systems Div. | Lemont Furnace | — | ◇ UNVERIFIED |
| UCUtilimaster CORP | Ephrata | — | ◇ UNVERIFIED |
| WMWack Manufacturing INC | Harmony | — | ◇ UNVERIFIED |
 Acutec Precision Aerospace, Inc. Meadville 1 | Meadville | 20–99 | ◐ LIKELY ACTIVE |
