R-v Industries, INC. | Honey Brook | 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 |
Shoemaker Mfg Solutions INC. | Souderton | 20–99 | ● ACTIVE |
Shumaker Industries INC | Northumberland | 20–99 | ● ACTIVE |
Sinterfire INC | Kersey | 20–99 | ● ACTIVE |
Solar Atmospheres INC. | Souderton | 100–499 | ● ACTIVE |
Solar Atmospheres of Western Pennsylvania, INC. | Hermitage | 20–99 | ● ACTIVE |
| SISolar Innovations | Pine Grove | 100–499 | ● ACTIVE |
Solenoid Solutions, INC | Erie | 20–99 | ● ACTIVE |
Sps Technologies, LLC | Jenkintown | 500+ | ● ACTIVE |
Staar Distributing LLC | Reynoldsville | 1–19 | ● ACTIVE |
Starn Tool & Manufacturing Company | Meadville | 20–99 | ● ACTIVE |
| SDSteel Dynamics, Inc., Flat Roll Group, the Techs Division, Galvtech Plant | Pittsburgh | 100–499 | ● ACTIVE |
Steel Fab Enterprises, INC | Lancaster | — | ● ACTIVE |
Sterling Machine Technologies, INC. | Palmyra | 20–99 | ● ACTIVE |
Stewart-amos Steel, INC | Harrisburg | 20–99 | ● ACTIVE |
Strait Steel INC | Greencastle | 20–99 | ● ACTIVE |
Superbolt INC | Clinton | 100–499 | ● ACTIVE |
Sussex Wire INC | Easton | 20–99 | ● ACTIVE |
Tancredi Machining INC | Topton | 1–19 | ● ACTIVE |
Tech Met INC | Glassport | 20–99 | ● ACTIVE |
Tecklane Manufacturing INC | Springdale | 1–19 | ● ACTIVE |
The Charles Schillinger Co., INC. | Bensalem | 20–99 | ● ACTIVE |
The Flinchbaugh Company, INC. | Manchester | 20–99 | ● ACTIVE |
| TEThomas Erie INC | Girard | 20–99 | ● ACTIVE |
| TWThomas W Springer INC | Landenberg | 20–99 | ● ACTIVE |
Three M Tool & Die CORP | York | 20–99 | ● ACTIVE |
Titanium Finishing CO. | East Greenville | 1–19 | ● ACTIVE |
Tm Industrial Supply INC | Erie | 20–99 | ● ACTIVE |
Tmp Manufacturing Company, INC. | Clearfield | 100–499 | ● ACTIVE |
Tooling Dynamics, LLC. | York | 100–499 | ● ACTIVE |
Transgard LLC | York | 1–19 | ● ACTIVE |
Twin Pines Manufacturing Corporation | Clarksburg | 1–19 | ● ACTIVE |
Universal Manufacturing CORP. | Zelienople | 20–99 | ● ACTIVE |
Universal Wire Cloth CO | Morrisville | 1–19 | ● ACTIVE |
US Axle, INC | Pottstown | 20–99 | ● ACTIVE |
Uticom Systems, INC. | Coatesville | 20–99 | ● ACTIVE |
Vacu-braze, INC | Quakertown | 20–99 | ● ACTIVE |
| VTVangura Tool, INC. | Clairton | 20–99 | ● ACTIVE |
Venango Machine Company, INC. | Wattsburg | 1–19 | ● ACTIVE |
| VIVersa-fab INC. | New Kensington | 20–99 | ● ACTIVE |
Vulcan Spring & Mfg. CO. | Telford | 20–99 | ● ACTIVE |
Warren Controls, INC. | Bethlehem | 1–19 | ● ACTIVE |
Waste Gas Fabricating Company, INC. | Fairless Hills | 100–499 | ● ACTIVE |
Weaver Industries INC | Denver | 20–99 | ● ACTIVE |
| WCWeiler Corporation | Cresco | 100–499 | ● ACTIVE |
Weldship LLC | Bethlehem | 20–99 | ● ACTIVE |