Great Lakes Metal Finishing, INC | Erie | 20–99 | ● ACTIVE |
| GPGreif Pkg Llc/warminster | Warminster | 20–99 | ● ACTIVE |
| GBGuardian Booth LLC | Waynesboro | — | ● ACTIVE |
Handrail Design INC | Columbia | 20–99 | ● ACTIVE |
Hard Chrome Specialists, INC. | York | 20–99 | ● ACTIVE |
Harold Beck & Sons, INC. | Newtown | 100–499 | ● ACTIVE |
Havis INC | Warminster | 100–499 | ● ACTIVE |
Highpoint Tool & Machine, INC. | Saegertown | 20–99 | ● ACTIVE |
H & W Global Industries, LLC | Blairsville | 20–99 | ● ACTIVE |
Imperial Carbide INC | Meadville | 20–99 | ● ACTIVE |
Industrial Metal Plating INC | Reading | — | ● ACTIVE |
Intermetro Industries CORP | Wilkes Barre | — | ● ACTIVE |
Irwin Automation INC | Greensburg | — | ● ACTIVE |
Jersey Shore Steel CO | Jersey Shore | 100–499 | ● ACTIVE |
John Evans' Sons, Incorporated | Lansdale | 20–99 | ● ACTIVE |
| KCKawneer CO INC | Bloomsburg | 100–499 | ● ACTIVE |
Keystone Sporting Arms, LLC. | Milton | 20–99 | ● ACTIVE |
Kmm Group, LTD. | Hatboro | — | ● ACTIVE |
Lamjen INC | Erie | 1–19 | ● ACTIVE |
Lancaster Metals Science CORP | Lancaster | 20–99 | ● ACTIVE |
Lenape Forged Products CORP | West Chester | 20–99 | ● ACTIVE |
| LMLibrandis Mach Shop | Middletown | 20–99 | ● ACTIVE |
Lockheed Martin Aeroparts, INC. | Johnstown | 500+ | ● ACTIVE |
Lockheed Martin CORP | Archbald | — | ● ACTIVE |
Machined Products Company | Lancaster | 20–99 | ● ACTIVE |
| MWMi Windows & Doors INC | Hegins | 100–499 | ● ACTIVE |
Nammo Pocal INC | Scranton | 20–99 | ● ACTIVE |
| NSNew Standard CORP | York | 100–499 | ● ACTIVE |
Northeast Industrial Manufacturing, INC. | Greenville | 20–99 | ● ACTIVE |
Oberg Industries LLC | Freeport | 100–499 | ● ACTIVE |
Penflex CORP | Gilbertsville | 20–99 | ● ACTIVE |
Penn Engineering & Manufacturing CORP | Danboro | 100–499 | ● ACTIVE |
Penn United Technologies INC | Cabot | 100–499 | ● ACTIVE |
Peters Heat Treating INC | Meadville | 20–99 | ● ACTIVE |
| PRPik Rite INC | Lewisburg | 100–499 | ● ACTIVE |
Plouse Machine Shop, INC. | Highspire | 20–99 | ● ACTIVE |
| PDPrecision Defense Services INC | Irwin | 100–499 | ● ACTIVE |
| PRPrecision Roll Grinders INC | Allentown | 100–499 | ● ACTIVE |
| PIPre-mach INC | York | 20–99 | ● ACTIVE |
Pulse Technologies INC | Quakertown | — | ● ACTIVE |
Reimel Machine INC | Willow Grove | — | ● ACTIVE |
Rex Heat Treat Lansdale INC | Lansdale | — | ● ACTIVE |
Richter Precision INC | East Petersburg | 100–499 | ● ACTIVE |
Scheerer Bearing CORP | Willow Grove | 20–99 | ● ACTIVE |
| SCShalmet CORP | Orwigsburg | 100–499 | ● ACTIVE |
Sharpsville Container CORP | Sharpsville | 20–99 | ● ACTIVE |
Shaw Industries CO. LLC | Franklin | 20–99 | ● ACTIVE |
Solar Atmospheres INC. | Souderton | 100–499 | ● ACTIVE |
| SDSteel Dynamics, Inc., Flat Roll Group, the Techs Division, Galvtech Plant | Pittsburgh | 100–499 | ● ACTIVE |
Strait Steel INC | Greencastle | 20–99 | ● ACTIVE |