Founded in 1954 by M.A. Mortenson Sr. in Minneapolis, Mortenson has nearly 50 years of construction excellence with office in Denver, Minneapolis, Chicago, Milwaukee, Seattle, Phoenix and Honolulu. Mortenson currently is ranked as the 37th largest construction firm in the 2002Engineering News Record rankings.

Mortenson is a full-service green builder providing general contracting, construction management and design/build services.