About Bruce and Debra Grewcock
My Journey in Leadership
Bruce Grewcock ’76 is executive chairman of the board of Peter Kiewit Sons’, Inc., an employee-owned business that is now the sixth-largest general contractor in the United States. Kiewit provides construction and engineering services to a variety of markets including building; mining; oil, gas and chemical; power; transportation; industrial; and water.
A committed Mines volunteer in numerous capacities for more than fifteen years, Grewcock is also a member of the Colorado School of Mines Foundation’s Board of Governors. He serves on both the Executive Committee and as chair of the HR & Compensation Committee. He has also served as past Class Chair of the Reunion Giving Program for the class of 1976; Chair Person for the Transforming Resources Major Gifts Committee; on the Visiting Committee for Mining Engineering; on the Transforming Resources Steering Committee; and on the Mines Advisory Board.
His dedication to Mines has earned him numerous honors from the university, including the Tourmaline Award (2018) and Distinguished Achievement Medal (1999).
At Kiewit, which Grewcock joined in 1982, his roles and responsibilities increasingly grew throughout his career. He was the company’s president and chief operating officer beginning in 2000, and in 2005 became only the 5th chief executive officer in the company’s history, a role in which he served for the next 16 years. During his tenure, Kiewit earned record levels of revenue, increasing from $4.1 billion in 2005 to over $10 billion in 2019.
Grewcock handed off CEO responsibilities to Rick Lanoha in 2020, but continues to play an active role within Kiewit as executive chairman. He provides leadership to others in the construction, engineering and mining industries to improve the safety of workers, the construction impact on the environment, and the overall professionalism and image of the industry. He reaches out to other leaders to share best practices, establish industry standards and foster innovation.
In addition to his corporate leadership and unparalleled support of Colorado School of Mines, Grewcock and his wife of 37 years, Debra, actively give back to a number of causes and organizations in their Omaha, Nebraska, community. Bruce is a current member of Business Roundtable and serves as a director of Nebraska Medicine, Nebraska Game and Parks Foundation and Heritage Services. He is also a past member of the Creighton University Board of Trustees. Debra is a dedicated volunteer and supporter for the Nebraska Humane Society and the Madonna School, which serves students and adults with intellectual and developmental disabilities.