Knife River

Knife River Corporation is a prominent construction materials and contracting company based in the western United States. Founded over a century ago near the Knife River in North Dakota, it has grown to become one of the largest in its field, operating in 14 states and employing over 5,700 people. The company specializes in supplying essential construction materials, including aggregates like sand, gravel, and crushed stone, as well as ready-mix concrete and asphalt. In addition to its materials supply, Knife River offers contracting services focused on public-sector projects such as roads, bridges, and airport runways. With 188 aggregate sites, 101 ready-mix concrete plants, and 56 asphalt plants, it ranks as the fifth-largest producer of sand and gravel in the U.S. Knife River is committed to employee safety, community involvement, and environmental stewardship, aiming to build strong neighborhoods and deliver high-quality products and services.