Founded in 2006, the business was established by Paul W Brunner, who has roots that go back to Austria, Germany and Ireland. He has received training in Automotive Mechanics, Aircraft Mechanics, Welding and Blacksmithing. He has served in the US Marine Corps and has worked in the fields of Service, Manufacturing and Sales. He is also a constant tinkerer and amateur inventor. Now he brings all of this to bear at Brunner Tool & Repair.

As a second-generation American on his father's side, Paul inherited his passion for precision manufacturing and working with steel from his paternal forefathers. He has also continued the legacy of Military Service; his father, Lawrence J Brunner Sr, is a WWII US Navy veteran.

As a fifth-generation American on his mother's side, Paul inherited his passion for business from his maternal grandfather. Walter Albert Backus was a WWI US Army veteran and successful businessman. He owned a Sweet Shop, a Restaurant and a Grocery Store in southern Minnesota.