Superior Structural Corporation

20230 W. Lincoln Avenue
New Berlin, WI 53146-1729


In September 1969, Heinrich J. J. Hofmann and Clyde Minor began working together fabricating ornamental and balcony railings out of a two-car garage. Soon after, the business outgrew the garage and relocated to an empty building in Waterford, Wisconsin. In 1972, Mr. Hofmann purchased Mr. Minor's entire share of the business and incorporated as Hein Manufacturing Corp. As the business continued to grow, so did the need for a larger shop. For this reason, in 1974 Mr. Hofmann built the company's current 28,000 square foot plant on West Lincoln Avenue in New Berlin, Wisconsin. By 1983, the company had expanded its customized steel products to include ladders, stairs, fire escapes and light structural steel. With the broadened area of expertise came the need for a descriptive company name. As a result, Mr. Hofmann formed New Berlin Ornamental Iron & Specialty Company Corp. Years later, that company's name was changed to Superior Structural Corporation as a result of its successful growth and diversification. Since 1972, the company has been privately owned and operated by the Hofmann family. In 1993, Mr. Hofmann passed away leaving it to his wife, Renate E. Hofmann, and their three children. Today, Superior Structural Corporation is well known for its efforts to provide building structures with high-grade steel for the industrial, commercial, academic, not-for-profit, and government sectors. Superior Structural Corporation is dedicated to providing exception value, by identifying an fulfilling our customers' diverse requirements for structural steel and miscellaneous metals. Through a commitment to quality, efficiency, safety and teamwork, we create a positive working environment, which encourages involvement, open communication and pride of performance. Our determination to achieve success is governed by a devotion to the principles of honesty, integrity, total quality management, and the ethical treatment of our customers and co-workers, while returning a fair profit to our company.



Ron Hofmann
Chief Estimator


Kevin Hofmann
Shop Foreman/Estimator

Started in:


  • Milwaukee 7

Core Competencies:

Superior Structural Corporation specializes in fabricating structural steel trusses, heavy-duty steel machine bases and machine frames, structural steel platforms; fabricating custom ornamental railings, hand railings, decorative ornamental gates, trash gate frames, ladders, spiral staircases, steel stairways, mezzanines, catwalks; supplying joist and deck material; and having skilled ironworkers to erect all of our products. Steel products can be prime and/or epoxy painted, powder coated or galvanized or sandblasted per project specifications.


Completed Projects: 1. DeKalb High School for the Owner, Dekalb Community Unit School District #428; Total Contract Amount of $4,880,000; Completed in 2011. 2. Greenfield High School Addition & Renovation, Natatorium, District Office and Maintenance Building for the Owner, Greenfield School District; Total Combined Contract Amount of $3,100,000; Completed in 2010. 3. Affiliated Foods Midwest for the Owner, Affiliated Foods Midwest, Inc.; Total Contract Amount of $2,700,000; Completed in 2009. 4. FedEx Ground Menomonee Falls Distribution Warehouse for the Owner, 2015 Menomonee Falls, LLC; Total Contract Amount of $1,214,600; Completed in 2015. 5. W. C. T. C. Business Technology Center for the Owner, Waukesha County Technical College; Total Contract Amount of $1,200,000; Completed in 2001. 6. Kenosha Civil War Museum for the Owner, City of Kenosha; Total Contract Amount of $1,100,000; Completed in 2008. 7. Milwaukee Bucks Training Facility for the Owner, Deer District LLC; Total Contract Amount $1,000,000; Completed in 2016.

Supplier to the Defense Industry:
No, never supplied to the defense industry

Number of Employees:
0 - 10

We are:
  • Woman Owned

Import: No

Export: No


  • Automotive
  • Aviation and Aerospace
  • Food and Beverage
  • Foxconn
  • Lakeshore Manufacturing Cluster
  • Marine Manufacturing
  • Wisconsin Wind Works


  • None

Markets Interested in Serving

  • Advanced Manufacturing
  • Agriculture Equipment
  • Construction
  • Transportation Manufacturing
  • Other
  • Structural and Miscellaneous Steel Fabrications


  • Construction and Installation (incl. construction materials)
  • Manufacturer / Service
  • Manufacturing: Metals - Foundries and Forges, Steel

Manufacturing Tier

  • Tier two companies are the key suppliers to tier one suppliers, without supplying a product directly to OEM companies. However, a single company may be a tier one supplier to one company and a tier two supplier to another company, or may be a tier one supplier for one product and a tier two supplier for a different product line.




For the second year in a row, the Wisconsin Economic Development Corporation (WEDC) nominated Superior Structural Corporation for the prestigious Marketplace 2017 Business Excellence Award.  Choosing a winner and runner-ups in each category is a very thorough process.  Based on the nominee's answers to in-depth questions, the judging panel chooses the Top 3 Finalists in each category - Outstanding Small Business, Outstanding Large Business, and Rising Star.  On December 14, 2017, the Potawatomi Hotel and Conference Center in Milwaukee was the venue for the WEDC awards presentation.  Each year, it is held in conjunction with the Wisconsin Governor's Conference on Minority Business Development.  The WEDC presented to Renate Hofmann, owner of Superior Structural, the First Runner-Up Award in the "Outstanding Small Business - WBE" category.

To modernize Superior Structural Corporation's equipment and improve fabrication efficiencies, the company purchased a new Daito CRII1040 Plasma Coping Robot with Hypertherm in October 2018.  Superior Structural Corporation anticipates the Daito CRII1040 Robot to be fully operational by Spring 2019.  Additionally, the company is leasing a Knuth Plasma Jet System with Hypertherm MicroEDGE.  The Knuth Plasma Jet has greatly improved the fabrication of structural steel parts.   

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