Bruce E. Grewcock

Grewcock, 65, joined Kiewit in 1982 as a chief engineer at Black Butte coal mine in Wyoming. He became president of Kiewit Mining Group in 1992, was elected to Kiewit’s board of directors in 1994, and named president and COO in 2000. He assumed the role of CEO in 2005 and has led the company to record levels of revenue, increasing from $4.1 billion that year to more than $9 billion in 2018.