Contract Manufacturing Centered Around You

HUI provides quality contract manufacturing services to regional industrial OEMs in the automation, drives, and energy markets.

Fabricated and Assembled in Kiel, Wisconsin, USA

We’re more than just a sheet metal manufacturing company

We partner with your team to get you what you need when you need it, backed by our commitment to:

Offering small- to-medium production runs so you can respond to demand
Leveraging Design for Manufacturing (DFM) expertise to increase profitability
Focusing on continuous improvement to ensure accuracy and quality
Facilitating collaborative engineering team communication for rapid revision changes
Serving customers in Wisconsin, Illinois, and Minnesota to expedite shipping and keep turn-around times fast

Areas of expertise

NEMA/UL-rated Enclosures, Cabinets, and Chassis

We serve the electrical, automation, HVAC industries, and more. Our engineers, operations, and quality teams have the experience and expertise to consistently meet – and exceed – your customers’ expectations, regulatory requirements, and tolerances.

Manufactured Components

OEMs value quality, transparency, and speed in suppliers of fabricated component parts. HUI has earned a reputation for dependability. We will get you the parts you need, when you need them to keep your production lines running to meet demand.

AC/DC and VSD/VFD Drive Enclosures

Among the premier metal fabricators in Wisconsin, HUI is known for fabrication and assembly of NEMA-compliant enclosures and cabinets that meet exacting quality and compliance standards. However, our expertise doesn’t begin and end with the build. Our engineers call on years of experience to identify and correct potential issues in the design phase, well before your project goes into production.

Looking for a metal fabricator in Wisconsin or the upper midwest?

HUI wants to hear from you! Send a message to, or request a quote. Our team will reach out to you to determine how we can find the best solution together.

Check out our Equipment & Capabilities page to find out more about HUI.


Expert Engineering and Design for Manufacturing

We can help you manage material costs, shorten lead times, minimize revisions, and reduce tooling costs and setups! Our engineering team is skilled in design for manufacturing and assembly, augmenting the manufacturing processes used to ensure your job will pass ratings tests, be built within the right tolerances, and meet design intent for form, fit, and function.

Sheet Metal Fabrication

We build capacity for our customers with quality sheet metal manufacturing and fabrication. Complex weldments? No problem. With cutting, punching, welding, bending, and auto-sert capability, we’re here to get your job done right the first time.

Powder-Coating and Finishing

No need to send parts out to paint before they are assembled! HUI does in-house powder-coating and finishing. With a six-stage pretreatment washer, two powder-coating rooms, and expert technicians, color matching and coverage are always accurate.

Electro-Mechanical and Mechanical Assembly

Streamline your production process by entrusting HUI with assembly or sub-assembly of your enclosure or cabinet. Ask us about cable assemblies, wiring harnesses, and wired panel assemblies – value-added services available to maximize efficiency.

Quality Assurance

Your customers expect timely delivery and high quality, so don’t settle for less than partnering with a contract manufacturing services provider that consistently delivers accurate, defect-free solutions quickly. HUI is an ISO 9001 and ISO 13485 certified shop with a robust total quality management system.

Certified ISO 9001-2015 and Certified ISO 13485-2016

“HUI, selected for quality, delivery, price and local engineering support, provided a new design and manufacturing advantages.”
“We were in trouble mode. Our current supplier had a lead time of 4 – 6 weeks and our customer was requesting quicker turns from us. They were also only painting our color once a week which limited our ability to deliver on rush orders.”
“HUI approached us and asked if we would be willing to listen to price reduction/design ideas on our cabinets. We were facing increasing price and delivery pressures from our customers. Quick turn revisions.”

Trusted Partners

Rockwell Automation

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