| SISunStar II | Latrobe | PA | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| SDSwindell Dressler | Coraopolis | PA | Machinery Manufacturing333994 | 20-99 | ◐ LIKELY ACTIVE |
| TUTeikoku USA INC. | Warminster | PA | Machinery Manufacturing333914 | — | ◐ LIKELY ACTIVE |
| TUTeikoku USA Inc. - Pennsylvania | Warminster | PA | Machinery Manufacturing333911 | 20-99 | ◐ LIKELY ACTIVE |
| TATESCOR a Link Group Co. | Warminster | PA | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| TTTessy Tooling, LLC | Erie | PA | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| TPThar Process LLC | Pittsburgh | PA | Machinery Manufacturing333248 | — | ◐ LIKELY ACTIVE |
| TAThe Atlas Group | Bensalem | PA | Machinery Manufacturing333519 | 20-99 | ◐ LIKELY ACTIVE |
| TBThe Basement Group LLC | Drumore | PA | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| TEThe Esab Group INC. | Hanover | PA | Machinery Manufacturing333992 | — | ◐ LIKELY ACTIVE |
Titan Robotics Inc- HQ | Coraopolis | PA | Machinery Manufacturing333998 | 20-99 | ◐ LIKELY ACTIVE |
| TTPS/Lindberg | New Columbia | PA | Machinery Manufacturing333994 | 100-499 | ◐ LIKELY ACTIVE |
| TLTps LLC | New Columbia | PA | Machinery Manufacturing333994 | — | ◐ LIKELY ACTIVE |
| TSTransport Solutions - Americas : MFG-York, PA-US | York | PA | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| TTTriangle Tool Division | Erie | PA | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| TITrius Inc Bethlehem PA | Bethlehem | PA | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| URUnited Refrigeration INC | Bensalem | PA | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| URUnited Refrigeration INC | Broomall | PA | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
Universal Plastics | Latrobe | PA | Machinery Manufacturing333249 | 20-99 | ◐ LIKELY ACTIVE |
| UMU.S. Municipal | King of Prussia | PA | Machinery Manufacturing333120 | 1-19 | ◐ LIKELY ACTIVE |
| VIValco Industries - New holland | New Holland | PA | Machinery Manufacturing333111 | 20-99 | ◐ LIKELY ACTIVE |
| VIVidir, INC. | Swatara Township | PA | Machinery Manufacturing333248 | — | ◐ LIKELY ACTIVE |
| VViking | Nesquehoning | PA | Machinery Manufacturing333913 | 1-19 | ◐ LIKELY ACTIVE |
| VMVista Metals, Inc | Kittanning | PA | Machinery Manufacturing333514 | 1-19 | ◐ LIKELY ACTIVE |
| VSVultee Street | Allentown | PA | Machinery Manufacturing333295 | 20-99 | ◐ LIKELY ACTIVE |
| WFWager facility | Erie | PA | Machinery Manufacturing333249 | 100-499 | ◐ LIKELY ACTIVE |
| WAWayne Automation Corporation (2) | West Norriton | PA | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| WCWeatherly Casting & Machine Co., LLC | Weatherly | PA | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| WFWilliams Form Engineering Pennsylvania | Collegeville | PA | Machinery Manufacturing333519 | 1-19 | ◐ LIKELY ACTIVE |
| YSYork Saw & Knife Company, Inc. | York | PA | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| ZIZimmerman Industries, Inc. | Ephrata | PA | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| TRT & R Trading LLC | Gallitzin | PA | Machinery Manufacturing333992 | — | ◐ LIKELY ACTIVE |
| VIVanguard Integrated Systems LLC | Lewisburg | PA | Machinery Manufacturing333111 | — | ◐ LIKELY ACTIVE |
| WVWest View Cunningham Site Expansion | Oakdale, Borough of | PA | Machinery Manufacturing333914 | — | ◇ UNVERIFIED |
| 2G2 Grade Excavating LLC | Morris | PA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| 4R400 Robinson Fans | Harmony | PA | Machinery Manufacturing333413 | — | ◇ UNVERIFIED |
| 6R60 Ram Drive, LP | Hanover | PA | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| ACAamik Crane Services | Telford | PA | Machinery Manufacturing333923 | — | ◇ UNVERIFIED |
| ALAccess Lift Equipment, INC. | Chambersburg | PA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| ACAdvanced Carbide Grinding, INC. | Derry | PA | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| AVAdvanced Valve Design, INC. | Whitehall | PA | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| APAdvantage Precision Plastics | Meadville | PA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| AHAdventaire Hoods, LLC | Schuylkill Haven | PA | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
Advent Design Corporation | Bristol | PA | Machinery Manufacturing333999 | — | ◇ UNVERIFIED |
| AMAlbertini Manufacturing and Supply INC | Lansford | PA | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| AUAlcoil USA LLC | York | PA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| APAlign Precision | Huntingdon Valley | PA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| ATAllegheny Tool and Manufacturing Company INC. | Meadville | PA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| AEAll-fill Expansion | Caln, Township of | PA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| ALAmeriscend, LLC. | Warminster | PA | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |