From small-scale projects to large-scale productions, the KSO Metalfab team has got your business needs covered with top notch solutions.
Our fully integrated, ISO 9001:2015 compliant locations include a 200,000 square foot heavy metal operation in Chicago and a 60,000 square foot light gauge facility in Bartlet, IL. Each offers full-service metal fabrication capabilities ranging from reverse engineering and prototyping to CNC machining and welding and finished off with mass production and assembly.
What began in 1973 as a metal cabinet and ductwork shop has evolved into a modern-day powerhouse specializing in everything from light to heavy components, handling materials from 20-gauge sheet metal to 7-inch plates. Today, the team at KSO Metalfab tackles custom fabrication projects for a global client base.

The KSO Metalfab Team
What sets us apart as metal fabricators? We’re perpetually ahead of the curve, embracing innovative design and cutting-edge technology from our Chicago-area facilities.
From the initial concept to the final product, superior execution is our priority. We ensure that each component meets your exact specifications, adheres to rigorous industry standards, and hits your crucial delivery deadlines.
We even offer rush services on top of our already exceptionally fast two or three week turnaround times — the KSO Metalfab team has the the tools and talent to bring your vision to life efficiently and flawlessly.
Speaking of talent, our metal fabricators are equipped with the latest technology, ensuring precision and durability in every project. Plus, we’re all about finding creative solutions that save you time and money – because your success is our success.
How KSO Metalfab Meets Your Needs
But enough about us – let’s talk about you and your business goals. Whether you’re in rail, aviation, construction, aerospace/defense, energy, infrastructure, retail/point of purchase, or even an artist seeking metal fabrication services for a large scale installation, we’re here to serve you. Our diverse customer base encompasses a broad array of industries, demonstrating our versatility and commitment to excellence in metal fabrication and more.
Meet your trusted partners at KSO Metalfab. We’re ready to bring your metal fabrication ideas to life.

