| SNSt. Nazianz | Saint Nazianz | WI | Machinery Manufacturing333111 | 100-499 | ◐ LIKELY ACTIVE |
| SPSummit Pump, Inc. | Oneida | WI | Machinery Manufacturing333911 | 20-99 | ◐ LIKELY ACTIVE |
Superior-lidgerwood-mundy CORP | Superior | WI | Machinery Manufacturing333923 | — | ◐ LIKELY ACTIVE |
| SASweet and Dried Cranberry Plant | Pittsville | WI | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| TTechniblend | Waukesha | WI | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| TUTerex Utilities MFG Waukesha | Waukesha | WI | Machinery Manufacturing333923 | 20-99 | ◐ LIKELY ACTIVE |
| TLThermach LLC | Appleton | WI | Machinery Manufacturing333992 | 20-99 | ◐ LIKELY ACTIVE |
| TTThe Toro Company - Tomah Manufacturing Plant | Tomah | WI | Machinery Manufacturing333112 | 500+ | ◐ LIKELY ACTIVE |
| TVThe Vollrath Company LLC., Kewaunee West | Kewaunee | WI | Machinery Manufacturing333241 | 20-99 | ◐ LIKELY ACTIVE |
| TPThomas Precision Machining Inc- Corporate | Rice Lake | WI | Machinery Manufacturing333241 | 100-499 | ◐ LIKELY ACTIVE |
| TITitan Industries Inc | New London | WI | Machinery Manufacturing333922 | 20-99 | ◐ LIKELY ACTIVE |
| TTld-wol | Eau Claire | WI | Machinery Manufacturing333924 | 20-99 | ◐ LIKELY ACTIVE |
| TMTomahawk Manufacturing Inc | Plymouth | WI | Machinery Manufacturing333241 | 20-99 | ◐ LIKELY ACTIVE |
| TITools Inc Sussex | Sussex | WI | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| TTT & T Manufacturing, LLC. | Spooner | WI | Machinery Manufacturing333517 | 20-99 | ◐ LIKELY ACTIVE |
| TRTwo Rivers Manufacturing | Two Rivers | WI | Machinery Manufacturing333519 | 1-19 | ◐ LIKELY ACTIVE |
| UCUnited Conveyor Supply Company - Pleasant Prairie | Pleasant Prairie | WI | Machinery Manufacturing333922 | 20-99 | ◐ LIKELY ACTIVE |
| URUnited Refrigeration, INC | Madison | WI | Machinery Manufacturing333415 | — | ◐ LIKELY ACTIVE |
| UEUPG Electrical | Monroe | WI | Machinery Manufacturing333517 | 100-499 | ◐ LIKELY ACTIVE |
| UUsemco | Tomah | WI | Machinery Manufacturing333318 | 100-499 | ◐ LIKELY ACTIVE |
| VGValley Grinding & Manufacturing, INC | Little Chute | WI | Machinery Manufacturing333515 | — | ▲ REPORTED CLOSED |
| VTValley Tissue Packaging, Inc | Kaukauna | WI | Machinery Manufacturing333993 | 20-99 | ◐ LIKELY ACTIVE |
| VIValmet Inc. | Beloit | WI | Machinery Manufacturing333243 | 100-499 | ◐ LIKELY ACTIVE |
| VMViking Masek Packaging Technologies, LLC | Oostburg | WI | Machinery Manufacturing333993 | 100-499 | ◐ LIKELY ACTIVE |
| VTVincent Tool Technologies Corp | Chippewa Falls | WI | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| VTVortex Tool Company, Inc | Schofield | WI | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| VIVrtkl INC | Green Bay | WI | Machinery Manufacturing333241 | — | ◐ LIKELY ACTIVE |
| WNWacker Neuson America Corporation- Logistics | Germantown | WI | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| WIWashworld, Inc | De Pere | WI | Machinery Manufacturing333318 | 20-99 | ◐ LIKELY ACTIVE |
| WDWatertown Distribution Center DC | Watertown | WI | Machinery Manufacturing333923 | 20-99 | ◐ LIKELY ACTIVE |
| WBWaukesha Bearings Corporation - Antigo | Antigo | WI | Machinery Manufacturing333613 | 100-499 | ◐ LIKELY ACTIVE |
Waukesha Metal Products - Grafton | Grafton | WI | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
Waukesha Metal Products - Sussex | Sussex | WI | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |
| WNWausau New Berlin | New Berlin | WI | Machinery Manufacturing333120 | 20-99 | ◐ LIKELY ACTIVE |
| WAWelding Accessories and Cutting - Appleton | Appleton | WI | Machinery Manufacturing333992 | 100-499 | ◐ LIKELY ACTIVE |
| WLWeldingmart LLC | Kaukauna | WI | Machinery Manufacturing333992 | — | ▲ REPORTED CLOSED |
| WBWest Bend | West Bend | WI | Printing and Related Support Activities323111 | 100-499 | ◐ LIKELY ACTIVE |
| WBWest Bend Office/Shop | West Bend | WI | Machinery Manufacturing333120 | 1-19 | ◐ LIKELY ACTIVE |
| WBWest Bend Operations | West Bend | WI | Machinery Manufacturing333991 | 100-499 | ◐ LIKELY ACTIVE |
| WPWi01-apc-american Prosthetic Comp | Green Bay | WI | Machinery Manufacturing333515 | 20-99 | ◐ LIKELY ACTIVE |
| F1"WI Facility 10 - Logistics" | Schofield | WI | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| F1"WI Facility 13 - Dampers" | Schofield | WI | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| F1"WI Facility 14 - IC" | Schofield | WI | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| F1"WI Facility 1 - TAP" | Schofield | WI | Machinery Manufacturing333413 | 100-499 | ◐ LIKELY ACTIVE |
| F2"WI Facility 2 - Axial" | Schofield | WI | Machinery Manufacturing333415 | 100-499 | ◐ LIKELY ACTIVE |
| F3"WI Facility 3 - Technical Training" | Schofield | WI | Machinery Manufacturing333415 | 1-19 | ◐ LIKELY ACTIVE |
| F6"WI Facility 6" | Schofield | WI | Machinery Manufacturing333415 | 1-19 | ◐ LIKELY ACTIVE |
| F9"WI Facility 9 - Education Center" | Schofield | WI | Machinery Manufacturing333415 | 20-99 | ◐ LIKELY ACTIVE |
| WWWisconsin Wire Works INC | Wales | WI | Machinery Manufacturing333992 | — | ◐ LIKELY ACTIVE |
| XTX-Cel Tooling, Inc. | Iron Ridge | WI | Machinery Manufacturing333514 | 20-99 | ◐ LIKELY ACTIVE |