Schutte & Koerting Acquisition Company | Feasterville Trevose | 20–99 | ● ACTIVE |
| SCService Caster Corporation | Reading | 20–99 | ● ACTIVE |
Sippel CO INC | Ambridge | 100–499 | ● ACTIVE |
Sjd Machining, INC. | Meadville | 20–99 | ● ACTIVE |
Skf USA INC. | Blue Bell | — | ● ACTIVE |
Skytop Machine and Tool, INC. | Port Matilda | 1–19 | ● ACTIVE |
| SCSpecialty Coating Systems INC | Johnstown | 20–99 | ● ACTIVE |
Specialty Roller and Machine INC | Berwick | 1–19 | ● ACTIVE |
Spitz INC | Chadds Ford | 20–99 | ● ACTIVE |
Ssm Industries, INC. | Pittsburgh | 20–99 | ● ACTIVE |
Starlite Diversified INC | Meadville | — | ● ACTIVE |
Steel City Structures LLC | Harrison City | 1–19 | ● ACTIVE |
Steer Machine Tool and Die Corporation | Honesdale | 1–19 | ● ACTIVE |
| SLStefanowicz & Lutz INC | Warrington | 20–99 | ● ACTIVE |
| SSStrait Steel INC | Greencastle | 20–99 | ● ACTIVE |
Summit Machine Company, INC. | Alverton | 20–99 | ● ACTIVE |
Tactical Ar500 Targets INC | Robesonia | — | ● ACTIVE |
The Metal Peddler INC | West Sunbury | 1–19 | ● ACTIVE |
The Philadelphia Pipe Bending CO | Philadelphia | 20–99 | ● ACTIVE |
The Purcell Company | Palmyra | 20–99 | ● ACTIVE |
Tiros Machine & Tool CO. | Feasterville Trevose | 1–19 | ● ACTIVE |
Triumph Controls, LLC | North Wales | — | ● ACTIVE |
True Position, INC | Gibsonia | — | ● ACTIVE |
T-tygart Industries, INC. | Carmichaels | 20–99 | ● ACTIVE |
| TMTuckey Metal Fabricators INC | Carlisle | 1–19 | ● ACTIVE |
Universal Fabric Structures, INC. | Telford | — | ● ACTIVE |
| VLV2r2 LLC | Harleysville | 1–19 | ● ACTIVE |
| VIValidus INC. | Colmar | 1–19 | ● ACTIVE |
Valley Precision Tool & Technology, INC | Tower City | 20–99 | ● ACTIVE |
Wagman Manufacturing, INC. | Manchester | — | ● ACTIVE |
| ZMZimmerman Machine, INC | Friedensburg | 20–99 | ● ACTIVE |
| 3G3mg Global LLC | Emsworth | — | ● ACTIVE |
84 Lumber Company | Eighty Four | — | ● ACTIVE |
Ace Mechanical Fab LLC | Cherry Tree | — | ● ACTIVE |
Acme Machine & Welding Co., LLC | New Kensington | — | ● ACTIVE |
Acorn Industrial Products CO | King of Prussia | — | ● ACTIVE |
Additive Innovations LLC | Pittsburgh | — | ● ACTIVE |
Advanced Cooling Technologies INC | Lancaster | — | ● ACTIVE |
Advanced Eng Systems LLC | Easton | — | ● ACTIVE |
Advanced Metals Machining LLC | Olyphant | — | ● ACTIVE |
Advanced Testing Services | Erie | — | ● ACTIVE |
| ALAlchemy Laser Engraving, LLC | Beaver | — | ● ACTIVE |
Alfa Laval INC | Warrington | — | ● ACTIVE |
Align Precision - Philadelphia, LLC | Horsham | — | ● ACTIVE |
Altaris Defense LLC | Equinunk | — | ● ACTIVE |
American Animal Arms LLC | New Tripoli | — | ● ACTIVE |
American Baling Products, INC | Ellwood City | — | ● ACTIVE |
Ametek INC | Eighty Four | — | ● ACTIVE |
Ametek, INC. | Horsham | — | ● ACTIVE |
Atlas Defense Co, LLC | Hummelstown | — | ● ACTIVE |