From high rises to highways, Psomas has a master plan. The engineering firm offers construction management, land surveying, water resource planning, environmental, and civil engineering services mainly to the water, transportation, and land development markets in the Western US. The company has both public and private sector clients. Among the projects it has had a hand in developing are the Los Angeles International Airport, Port of Los Angeles, University of California, Los Angeles, and Walt Disney Concert Hall. Psomas has offices throughout California, as well as in Arizona an Utah. The family-owned firm was founded in 1946 by George Psomas.