Michael Baker International Inc

KPFF Consulting Engineers, founded in 1960, provides various structural and civil engineering services. The company provides consulting and designing services for the construction industry. Its wide range of structural engineering projects include commuter rail stations, airports, parkway developments, public streets, office buildings, parking lots, commercial, retail and entertainment complexes, and theme restaurants. The company also provides consulting and designing for multiplex theaters, universities, underground utility tunnels, tower structures, condominiums, medical, diagnostic and research facilities, mental health centers, and city halls. KPFF Consulting Engineers is located in Los Angeles, and has branch offices in Seattle, San Diego, Phoenix, St.Louis, Denver, and San Francisco.

AECOM is an international professional technical services company providing consulting, design, program and construction management and operations and maintenance support to the transportation, environmental and building industries. The company serves both government and private clients. AECOM also provides technical support, international development assistance, and mining and power services. AECOM is headquartered in Los Angeles and operates additional offices throughout the United States., Canada, Asia, the Middle East, Africa, Australia and Europe.