| NCNucor Cold Finish Wisconsin | Oak Creek | WI | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| OWOlin Winchester, LLC - Manitowoc | Manitowoc | WI | Fabricated Metal Product Manufacturing332992 | 100-499 | ◐ LIKELY ACTIVE |
Phillips-medisize LLC - Metal Injection Molding | Menomonie | WI | Fabricated Metal Product Manufacturing332117 | 20-99 | ◐ LIKELY ACTIVE |
| PPPrecision Pattern | Waukesha | WI | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| PIPRE-heat, Inc. | Oostburg | WI | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| PLProvident LLC | Appleton | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| RIRaphael Industries INC | West Allis | WI | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| RBR & B Wagner INC | Milwaukee | WI | Fabricated Metal Product Manufacturing332323 | — | ◐ LIKELY ACTIVE |
| RMRenco Machine Co., INC. | Green Bay | WI | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| RMRes Manufacturing CO | Milwaukee | WI | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| RMRhine Machining & Fabricating, Inc. | Kiel | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| RMRMG Machining LLC | Grafton | WI | Fabricated Metal Product Manufacturing332721 | 1-19 | ◐ LIKELY ACTIVE |
| RIRobinson Inc DP1 | De Pere | WI | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| RIRobinson Inc - DP2 | De Pere | WI | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| SKSafety Kleen Systems Inc 77NBW | New Berlin | WI | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| STSchaefer Tool and Manufacturing CO. INC. | Milwaukee | WI | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| SCSeljan Company, INC. | Lake Mills | WI | Chemical Manufacturing325211 | 100-499 | ◐ LIKELY ACTIVE |
| STSjoberg Tool & Manufacturing Corp. North Facility | Hartland | WI | Fabricated Metal Product Manufacturing332116 | 100-499 | ◐ LIKELY ACTIVE |
| STSons Tool INC. | Woodville | WI | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| SRSpecialty Rolled Metals LLC Beaver Dam WI | Beaver Dam | WI | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| SISteelwind Industries | Oak Creek | WI | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| SPSummit Packaging Systems Racine | Racine | WI | Fabricated Metal Product Manufacturing332919 | 100-499 | ◐ LIKELY ACTIVE |
| TCTankcraft Corporation | Darien | WI | Fabricated Metal Product Manufacturing332420 | 100-499 | ◐ LIKELY ACTIVE |
| TCThe Chrome Shop | Menasha | WI | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| TJThe Jor-mac CO INC. | Lomira | WI | Fabricated Metal Product Manufacturing332322 | 100-499 | ◐ LIKELY ACTIVE |
| TEThorp Equipment INC | Thorp | WI | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| TITower Industries, INC. | Greenville | WI | Fabricated Metal Product Manufacturing332993 | — | ◐ LIKELY ACTIVE |
| TBTrachte Building Systems, INC. | Sun Prairie | WI | Fabricated Metal Product Manufacturing332311 | 100-499 | ◐ LIKELY ACTIVE |
| TNTrachte North | Oregon | WI | Fabricated Metal Product Manufacturing332210 | 100-499 | ◐ LIKELY ACTIVE |
| TMTriangle Manufacturing Company | Oshkosh | WI | Fabricated Metal Product Manufacturing332116 | 20-99 | ◐ LIKELY ACTIVE |
| TTTriangle Tool, LLC | Milwaukee | WI | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| UAUnited Alloy, INC. | Janesville | WI | Fabricated Metal Product Manufacturing332312 | 500+ | ◐ LIKELY ACTIVE |
| VSVeritas Steel - Eau Claire | Eau Claire | WI | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| WNWacker Neuson America CORP | Menomonee Falls | WI | Fabricated Metal Product Manufacturing332999 | 100-499 | ◐ LIKELY ACTIVE |
| WWatertronics | Hartland | WI | Fabricated Metal Product Manufacturing332117 | 100-499 | ◐ LIKELY ACTIVE |
| WIWisco Industries INC | Oregon | WI | Fabricated Metal Product Manufacturing332116 | 100-499 | ◐ LIKELY ACTIVE |
| WKWisconsin Knife Works | Beloit | WI | Fabricated Metal Product Manufacturing332216 | 20-99 | ◐ LIKELY ACTIVE |
Wisconsin Oven CORP | East Troy | WI | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| WSWrico Stamping CO of Wisconsin | Menomonee Falls | WI | Fabricated Metal Product Manufacturing332119 | 20-99 | ◐ LIKELY ACTIVE |
| WMW/s Machine & Tool, INC. | New Berlin | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| WFWst Fab LLC. | Manitowoc | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| ACAdvanced Coatings INC | West Bend | WI | Fabricated Metal Product Manufacturing332810 | — | ◐ LIKELY ACTIVE |
| APAdvanced Plating Technologies | Milwaukee | WI | Fabricated Metal Product Manufacturing332810 | — | ◐ LIKELY ACTIVE |
| AIAlliance-industries INC - Menasha | Menasha | WI | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| BBusse-sji | Randolph | WI | Fabricated Metal Product Manufacturing332410 | — | ◐ LIKELY ACTIVE |
| DSD & S Manufacturing CO INC | Black River Falls | WI | Fabricated Metal Product Manufacturing332000 | — | ◐ LIKELY ACTIVE |
| HLHendo, LLC Dba Optimal Performance Innovations (opi Llc) | Sheboygan | WI | Fabricated Metal Product Manufacturing332812 | — | ◐ LIKELY ACTIVE |
| NMNobles Mfg INC | Saint Croix Falls | WI | Fabricated Metal Product Manufacturing332994 | — | ◐ LIKELY ACTIVE |
| NMNorco Mfg CORP | Franksville | WI | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |
| SHSpecific Heat | Franksville | WI | Fabricated Metal Product Manufacturing332321 | — | ◐ LIKELY ACTIVE |