Crystal Construction, 19103 U S Highway 169, Lake Crystal, MN 56055, US

Established in 1973, GM Contracting Inc. is one of the leading underground utility contracting firms in Minnesota that installs sewer, water and storm sewer lines for municipalities, counties and state highway departments. The company uses both traditional open-cut construction and directional boring methods of installation. It has also done private and commercial developments and agriculture drainage. GM Contracting Inc. is a member of the Associated Builders & Contractors Inc. (ABC) and National Utility Contractors Association (NUCA).