Welcome To Northern Con-Agg, Inc. Est. 1986

Northern Con-Agg, Inc., NCA, began operations in 1986 as an aggregate producer with operations in Minnesota and South Dakota. Today, Northern Con-Agg, Inc. consists of two core business units, a mining division and a construction division. The mining division concentrates on aggregate and kaolin mining, while the construction division provides general contracting services for projects throughout the state of Washington.