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Largest Metal Fabrication Companies in Wisconsin (2026)

Metal fabrication here means companies classified under NAICS 332322 (sheet metal work manufacturing), 332312 (fabricated structural metal manufacturing) or 332119 (metal crown, closure and other metal stamping, except automotive): sheet metal shops, structural steel fabricators and metal stampers. Factur's directory lists 571 companies in Wisconsin under these codes; these are the 25 largest of them by annual revenue, led by Kapco Inc ($81M), Jagemann Stamping Co ($77M) and Henry Wisconsin LLC ($75M).

The 25 largest metal fabrication companies in Wisconsin by annual revenue

#CompanyCityEmployeesAnnual revenue
1Kapco IncGrafton404$81M
2Jagemann Stamping CoManitowoc124$77M
3Henry Wisconsin LLCRice Lake384$75M
4Kickhaefer Manufacturing CoPort Washington326$59M
5JR Metal Works LLCKewaunee177$48M
6Waukesha Metal ProductsGrafton103$28M
7Wrought Washer Manufacturing IncMilwaukee101$28M
8Pmi LLCBloomer133$26M
9HTT IncSheboygan105$26M
10Wisco Industries IncOregon91$25M
11Argon Industries IncMilwaukee97$24M
12Super Sky Products Enterprises LLCMequon113$23M
13Mid-City Steel IncLa Crosse87$22M
14ATACO Steel Products CorpCedarburg77$22M
15D&H Industries IncOconomowoc91$21M
16Vollrath Manufacturing ServicesSheboygan159$21M
17Northern Metal Fab IncBaldwin83$21M
18Vulcan Industries CorpGermantown15$21M
19Badger Sheet Metal WorksGreen Bay107$20M
20Wisconsin Stamping & Manufacturing LLCGermantown100$20M
21Badger Sheet Metal LLCDeforest97$20M
22Mathfab LLCOshkosh74$19M
23K&S Manufacturing IncIxonia78$19M
24Racine Metal-Fab LtdSturtevant64$19M
25Wisconsin Metal Fab LLCChippewa Falls88$19M

Get the full list: 571 metal fabrication companies in Wisconsin

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How this list is ranked

Companies are ranked by annual revenue (USD) as recorded on each company's profile in the Factur directory, highest first; companies with the same revenue are ordered by employee count. Only companies with a positive revenue figure on file are ranked, so a large private company with no reported revenue can be missing. The list covers companies whose record places them in Wisconsin and whose NAICS codes include 332322, 332312 or 332119. Figures are a snapshot of the directory, refreshed when the rankings are regenerated; open a profile for its current data.