No. 3 on the list is Science Applications International Corporation ( SAIC), a provider of scientific, engineering, systems integration and technical services and solutions.

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Data gathering and number crunching for the two-year study was done by Science Applications International Corporation (SAIC), a big government contractor, with input from academics and oil companies like Shell, BP, Marathon Energy.

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Other private companies like Science Applications International Corp. (SAIC) have solved the people problem in a more traditional way: Pay them to stay.

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