Building Supplies & Contractors

With offices in Spearfish, Ainsworth-Benning Construction has a rich history of providing successful projects across western South Dakota thanks to our expertise in the Construction Manager at Risk delivery system. We have an exemplary record of completing projects on-time, within budget and to the satisfaction of owners, as demonstrated by our citations as 2013 Alliant Build America Award – in the Building Under $10M New Category – Davis Campus Outfitting Project, Construction Industry Center Master Craftsmanship, American Buildings Design Build, South Dakota Transportation Quality, GCC Dacotah Excellence in Concrete and various safety awards on both the state and national levels of the Associated General Contractors.