Jacobs Engineering Group has sold its share of Mission Support Alliance, the Hanford sitewide services contractor, to Leidos.
The owners of Hanford contractors control thousands of jobs at Hanford, and the contracts are worth billions of dollars.
Leidos now owns 88 percent of Mission Support Alliance, the Hanford contractor confirmed this week, after acquiring Jacobs’ share of the contractor.
Leidos did not respond to requests for information about details of the acquisition.
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Originally Leidos owned 47 percent of the Hanford nuclear reservation contracting company, Jacobs owned 41 percent and Centerra Group owned 12 percent.
However, the Department of Energy contract awarded to Mission Support Alliance prohibits its owners from conducting work under key contracts to prevent conflicts of interest.
In December, Jacobs acquired CH2M, including the CH2M Hill Plateau Remediation Co., which has a contract valued at $4.5 billion over 10 years for Hanford environmental cleanup work. It employs about 1,700 people.
Mission Support Alliance holds a 10-year contract valued at about $3 billion and employs about 1,900 people.
Mission Support Alliance provides services such as security, emergency response, fleet and road maintenance, utilities and information technology.
It also provides portfolio management, which helps DOE make informed decisions on environmental cleanup work across all contracts to save money, evaluate alternatives and meet legally required cleanup deadlines and standards.
This story has been corrected to reflect the original ownership of Mission Support Alliance and sale of CH2M.