Sunderman Tube and Steel

Tessier in Mitchell, SD specializes in mechanical contracting work for projects of any size and complexity. Our services include heating, ventilation, air-conditioning, refrigeration, temperature control, piping and HVAC systems balancing. We provide preventative maintenance and repair services. In addition, Tessiers can help with sheet metal fabrication, specialty welding, and grain elevator maintenance.

Adams Thermal Systems, located in Canton, S.D., is one of the leading manufacturers of engine cooling systems for off- and on-highway vehicles, including agricultural and construction equipment. Founded in 2004, it also manufactures equipment for military applications, including on-highway trucks and diesel engines, as well as automotive and light truck applications. Its products include cooling modules, radiators, and charge air, oil and fuel coolers and condensers. Adams Thermal Systems also designs and manufactures custom-engineered cooling solutions for various applications in the off- and on-highway markets. The company manufactures round- and flat-tube, and drawn-cup designs to meet the needs of a variety of applications.