Fortune 1000 rank: 720Best Companies rank: 74No. of U.S. employees: 4,650
Most common salaried job: Engineer
Avg. pay in that job: $77,561
What makes it so great? Builder of roads, bridges, and dams has a zero-accident goal. One worker told us, "If you or anybody feels something is unsafe, you will not be fired. You will be rewarded."
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