Engaged in highway construction, British Columbia, Washington, California, Cuba, 1914-1930, Mississippi levee, 1927-1930, pipe line projects in the Southwest, 1930-1933. Chairman of the executive committee of Six Companies, Inc. (contractors for construction of Boulder Dam), 1931.
President and chairman of the executive committee Bridge Builders, Inc., 1933. Organizer and president Columbia Construction Company, Consolidated Builders, Inc. Participant in 70 other major construction projects, 1941-1945.
Chairman of the Board Kaiser Industries Corporation, Kaiser Hawaii Kai Development Company, Kaiser Community Homes, Kaiser Center, Inc. Founder chairman Kaiser Jeep Corporation, Kaiser Steel Corporation, Kaiser Aluminum & Chemical Corporation, Kaiser Cement and Gypsum Corporation, also of Kaiser Bauxite Company, Glacier Sand & Gravel Company, Permanente S.S. Corporation. President Industrias Kaiser Argentina.
Chairman of the board Kaiser Foundation Health Plan. Manager 7 shipyards on Pacific Coast during World World War World War II.