Nelson Construction Services, 1514 190th Ave, Balsam Lake, WI 54810, US

M. A. Mortenson Company is among the largest general builders in the United States. The company operates as a diversified construction organization, offering customer-centric services in general contracting, construction management, program management, design-build, project development and turn-key development. Project operations extend globally. The company is involved in commercial building types that range from corporate office facilities and healthcare projects, high tech manufacturing and network/data facilities, to sports, hospitality and educational facilities. In 1954, the company was established in Minneapolis, Minn. The privately-held corporation is owned by the Mortenson family with headquarters in Minneapolis and full-service offices in Chicago, Denver, Milwaukee, Wis., Seattle, Phoenix, Ariz., and Melbourne, Australia.