M.A. Mortenson Company

M.A. Mortenson Company (“Mortenson”) is a leading U.S.-based builder specializing in large-scale renewable energy projects with headquarters in Minneapolis, Minnesota. Founded in 1954 by M.A. “Mort” Mortenson Sr., the company has grown into one of North America’s top contractors across multiple sectors—including sports venues, healthcare facilities, data centers, commercial buildings—but stands out as an industry leader in renewable energy engineering and construction. In solar specifically, Mortenson has delivered over 10 gigawatts across more than 90 projects spanning at least 17 states over the past 15 years—making it one of North America’s most experienced EPC providers for utility-scale solar installations. Their expertise covers all phases: preconstruction planning; detailed design; procurement; civil works; installation of photovoltaic modules including advanced bifacial panels; substation/grid tie-in work; commissioning; and long-term maintenance support.