M. A. MORTENSON CO.

The general contractor performs construction, development, and design-build services for a variety of projects in the corporate, data center, performing arts, health care, hospitality, manufacturing, public, and retail sectors. The firm also has groups devoted to federal contracting, sports venues, and renewable energy, including wind farms, water/wastewater, and biofuel facilities. Some of its notable projects include the Allegiant Stadium in Las Vegas and the Chase Center in San Francisco. Founded in 1954, the family-owned firm has offices across the US, with international office in Canada.