Our Story

SDI Fabrication is founded by a team that has over 35 years in the manufacturing industry.  SDI Fabrication is a division of SD Industries, LLC which started in 2006 by designing and manufacturing 304 Stainless Steel solutions for the agriculture industry.  Our success in producing and delivering quality products combined with our efficient manufacturing process has allowed us to offer custom manufacturing solutions to manufacturing companies from all industries.


Our State of the Art 95,000 square foot facility is located outside of Mitchell, SD. We specialize in metal fabrication for many industries in the United States and across the globe. With over 60 employees and machines that run around the clock, we can handle any job, large or small.


Meet the Team

Kenny Waldner

Founder & CEO

Kenny has been with SDI since the day it was just a thought process & dream. He understands our CNC equipment inside/out. Kenny is always excited to look at new ideas and concepts within the manufacturing arena. Delivering quality products and satisfied customers is his end goal!

trent fab

Trent Thomas


Trent came to SDI with 15 years of experience in the world of procurement. When not spending time with his wife and their children. Trent thoroughly enjoys golfing, traveling, fishing, and defending his title of Barbecue champ at the South Dakota State Fair. Trent’s philosophy is that the only way SDI can succeed is to help its customers be successful.

jason fab

Jason Stoebner


Jason is an experienced banking executive with an extensive background in all facets of commercial and AG banking. He believes that success comes from delivering strong results with a great team. As CFO, he is responsible for ensuring that SDI has the information solutions needed to improve SDI's effectiveness and efficiency in delivering services to our customers around the globe.

lars fab

Lars Christenson

Plant Manager

A lifelong resident of Mitchell, SD, Lars began working with Kenny in 2015. Lars has 18 years of production management in various roles within the manufacturing industry. His background in engineering and manufacturing helps SDI delivery quality products to their customers. When Lars is not at work, you will find him riding a motorcycle or rebuilding his latest project bike or vintage car.