provides design, engineering, construction management, facilities and operations management, environmental remediation, and mining services to government and private sector clients.
Its Power segment offers services to fossil and nuclear power markets for turnkey new power plant construction, plant expansion, decontamination and decommissioning, general planning, and environmental permitting.
The company’s Infrastructure segment provides diverse services for highways and bridges, airports and seaports, railroad and transit lines, water storage and transport, water treatment, site development, and hydroelectric facilities.
Its Mining segment offers contract-mining, resource evaluation, geologic modeling, simulation modeling, equipment selection, production scheduling, and operations management to coal, industrial minerals, and metals markets.
The company’s Industrial/Process segment provides services for general manufacturing, pharmaceutical and biotechnology, upstream oil and gas, food and consumer products, automotive, aerospace, telecommunications, and pulp and paper industries.
Its Energy and Environment segment offers construction, contract management, supply-chain management, quality assurance, administrative, and environmental cleanup and restoration services to the United States Department of Energy.
The company’s Defense segment provides various technical services to the United States Department of Defense, including environmental and chemical demilitarization services, waste handling and storage, and procurement and construction services.
The company operates in the United States, Canada, and Europe.
The company was incorporated in 1993 under the name Kasler Holding Company and changed its name to Washington Construction Group, Inc.
in 1996.
Its name was changed to Morrison Knudsen Corporation in 1996 and to Washington Group International, Inc.
in 2000.
Washington Group International is headquartered in Boise, Idaho.

