KNF Knife River Corporation

Knife River Corporation is a U.S.-based entity focused on supplying aggregate-derived building materials and offering related contracting services. Its business activities are structured across six distinct operational segments: Pacific, Northwest, Mountain, North Central, South, and Energy Services. The company is involved in extracting, processing, and distributing crucial construction aggregates, including varieties of crushed stone, sand, and gravel. Additionally, it produces and sells both asphalt and ready-mix concrete. To support these core product lines, Knife River also performs various contracting tasks, such as heavy-civil construction, paving with asphalt and concrete, and comprehensive site development and grading work. Its primary clients are governmental bodies at the federal, state, and municipal levels, for whom it undertakes a wide range of public infrastructure initiatives. These projects often include highways, bridges, airports, educational facilities, public buildings, and other foundational community works. Founded in 1917, the organization is headquartered in Bismarck, North Dakota.