| SWSteel Warehouse of Milwaukee | Oak Creek | WI | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| SDStroh Die Casting CO INC | Milwaukee | WI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| SCSupreme Casting, INC. | Milwaukee | WI | Primary Metal Manufacturing331529 | — | ◇ UNVERIFIED |
| TVThe Vollrath Company LLC | Kewaunee | WI | Primary Metal Manufacturing331319 | — | ◇ UNVERIFIED |
| UMUnited Milwaukee Scrap | Milwaukee | WI | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| UMUnited Milwaukee Scrap, LLC | Milwaukee | WI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| USUnited Stars INC | Beloit | WI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| VPValley Plating of Green Bay LLC | Green Bay | WI | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| VMVilter Manufacturing Corporation - Milwaukee | Milwaukee | WI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| VGVulcan Global Manufacturing Solutions INC | Milwaukee | WI | Primary Metal Manufacturing331490 | — | ◇ UNVERIFIED |
Waupaca Foundry INC Warehouse | Waupaca | WI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| WMWildeck Mezzanines INC | Waukesha | WI | Primary Metal Manufacturing331200 | — | ◇ UNVERIFIED |
| WWWm Waste INC | Union Grove | WI | Primary Metal Manufacturing331490 | — | ◇ UNVERIFIED |
| EC"4004 - Eau Claire Steel Plant" | Eau Claire | WI | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| ADAfi Direct Service INC | Oak Creek | WI | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| BABadger Alloys- Machine shop | Milwaukee | WI | Primary Metal Manufacturing331513 | 1-19 | ◐ LIKELY ACTIVE |
| BABadger Alloys- Pattern Shop | Milwaukee | WI | Primary Metal Manufacturing331513 | 1-19 | ◐ LIKELY ACTIVE |
| BWBadger Wire | Waukesha | WI | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| BFBerntsen Foundry Phelps Cast Location | Phelps | WI | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
Central Wire Inc. Fond Du Lac, WI | Fond Du Lac | WI | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| EEvansville | Evansville | WI | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| GPGateway Plant | Sheboygan | WI | Primary Metal Manufacturing331523 | 500+ | ◐ LIKELY ACTIVE |
| GGrede | Reedsburg | WI | Primary Metal Manufacturing331511 | 500+ | ◐ LIKELY ACTIVE |
| GWGrede Wisconsin Subsidiaries LLC Browntown | Browntown | WI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| HMHixwood Metal LLC | Stanley | WI | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG WakefieldWithee | Withee | WI | Primary Metal Manufacturing331318 | 20-99 | ◐ LIKELY ACTIVE |
| LFLaX Fabricating LTD - Westby WI | Westby | WI | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| MKMadison Kipp Corporation - North | Madison | WI | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| MKMadison Kipp Corporation South Plant/Corporate | Madison | WI | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
Meyer Utility Structures | Hager City | WI | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| MMModern Manufacturing International | Wausau | WI | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
Phillips-Medisize, LLC Magnesium Molding | Eau Claire | WI | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| PCPowerbrace Corporation | Kenosha | WI | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| SESigma Engineered Solutions - IC | Markesan | WI | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| SSSteiger Steel & Fabricating | La Crosse | WI | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| VIValmet Inc Waukesha Wilmont | Waukesha | WI | Primary Metal Manufacturing331513 | 1-19 | ◐ LIKELY ACTIVE |
| WWaf | Manitowoc | WI | Primary Metal Manufacturing331524 | 100-499 | ◐ LIKELY ACTIVE |
| WMWinsert Marinette | Marinette | WI | Primary Metal Manufacturing331513 | 100-499 | ◐ LIKELY ACTIVE |
| WCWisconsin Cast Iron | Kohler | WI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| WCWisconsin Centrifugal Division | Waukesha | WI | Primary Metal Manufacturing331513 | 100-499 | ◐ LIKELY ACTIVE |
| CACentrifugal Acquisition Corporation, INC. | Milwaukee | WI | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| NBNeenah Brass & Aluminum Foundry CO | Neenah | WI | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| ACAdvanced Centrifugals | Cambridge | WI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ACAdvanced Centrifugals LTD | Cambridge | WI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| AAAdvantage Aero, INC. | Madison | WI | Primary Metal Manufacturing331313 | — | ◇ UNVERIFIED |
| AFAelco Foundries INC | Milwaukee | WI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| ACAlbany Chicago Company, LLC | Pleasant Prairie | WI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| ASAllied Smelting | West Allis | WI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| AAlumitech | Merrill | WI | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| AIAmcast Industrial CORP - Amcast Automotive | Cedarburg | WI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |