Top 24 Metal Fabrication Companies in Wisconsin 2026

ATACO Steel Products

Cedarburg, Wisconsin

ATACO Steel Products Corporation, a privately owned manufacturer of metal stampings, has operated from Cedarburg, Wisconsin since its founding in 1946. The company began as a deep draw stamping specialist and has grown into a full-service metal fabrication partner.

Dane Manufacturing

Waunakee, Wisconsin

Dane Manufacturing operates from Waunakee, Wisconsin, where it was established in 1917 by a group of local investors to produce a below‑the‑frost‑line water pump. The company’s early success came with the Can’t Clog hog feeder, a staple in agriculture, before it transitioned into contract manufacturing.

Custom Metals Inc

Madison, Wisconsin

Custom Metals Inc. is a family-owned metal fabrication shop founded in 1980 and based in Madison, Wisconsin.

Doral Corporation

Milwaukee, Wisconsin

Doral Corporation operates from Milwaukee, Wisconsin, where it has built over 60 years of experience in rigging, fabrication, erecting, and installation. The company’s history in heavy machinery moving and custom metal fabrication spans decades, though a specific founding year and ownership structure are not publicly disclosed.

Icon Metals Machining & Fabrication

Freedom, Wisconsin13 employees

The company was founded in 2016, emerging from a predecessor business known as Mike's Welding. The rebranding marked an expansion of capabilities while retaining a focus on craftsmanship.

Kanehl Fabrication

Menomonee Falls, Wisconsin

Kanehl Fabrication was founded in 2006 in Menomonee Falls, Wisconsin, opening as a metal fabrication shop focused on precision work. The company has grown through deliberate investments in technology and facilities, adding CNC laser capability in 2008 and relocating to a new location in 2010.

Maysteel Industries, LLC

Allenton, Wisconsin

Maysteel Industries, LLC was founded in 1936 in Allenton, Wisconsin. The company produces custom enclosures, high-density server racks, aisle containment systems, and prefabricated modular structures for data centers, along with generator enclosures, PDU enclosures, padmount tanks, and transformer enclosures for critical infrastructure.

New Tech Metals operates from New Franken, Wisconsin, where it was founded in 1982 as New Tech Metalworks. The company is a veteran-owned, family-owned small business.

Weld Fab Manufacturing Corporation

Slinger, Wisconsin

Weld Fab Manufacturing Corporation operates from Slinger, Wisconsin, where it was founded in 1990 as a small weldment shop. The family-owned business began with minor welding projects and expanded steadily over the following decade.

Wisconsin Metal Fab LLC

Chippewa Falls, Wisconsin

Wisconsin Metal Fab LLC operates from Chippewa Falls, Wisconsin. The company completed its fifth facility expansion in 2021, bringing its manufacturing space to 106,000 square feet (a capabilities page also references 77,000 square feet).