6 structural steel fabricators listed in Wisconsin — Appleton, Colfax, De Pere, Franksville, Merrill, Schofield. Every listing is compiled from the company’s own website and links straight back to it.
The 6 listings sit in 6 Wisconsin cities. 1 of 6 shows AISC certification on the company’s own site — verify current status with AISC. All 6 carry a street address or phone read from the company’s site and re-checked. Checked 2026-08-26.
Company site displays AISC certification. Verify with AISC.
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Listings are free. If your shop is missing, or you want to confirm, correct, update, or remove your entry, tell us and we’ll build it from your own site — you own what appears. No fee, no lead-selling, and removal is honored on request.
How this directory is built. Every listing is compiled from the fabricator’s own public website (or claimed by the company itself) and links back to it. We do not republish AISC’s Find-a-Certified-Company database or any other protected directory, and this site is not endorsed by or affiliated with AISC. Where a company states a certification on its own site we note it, but certification status changes — verify current AISC certification, capabilities, and contact details directly with the company and with AISC before you rely on it. Reference aid, not procurement advice.