About Us > Our Midwest Map: Representing and Distributing Process Heating Products & Services

Marshall W. Nelson & Associates predominantly serves the midwest region in WI, MN, UP of MI, ND, SD, and part of IL.

Our Combustion System Applications/Designs are in many types of Industries - our Valve Train Assemblies are shipped nationwide.

Our Locations are shown with our 
icon in the map below:        Minnesota location      Wisconsin location