Graniterock Employee Directory
ConstructionCalifornia, United States201-500 Employees
Graniterock is a California-based construction materials and services provider with roots dating back to 1900. The company is headquartered in Watsonville and serves the California construction market, with emphasis on heavy civil projects such as highways, airports, and bridges. Its offerings include asphalt, concrete, aggregate, paving, grading, underground work, green building practices, and general construction services. It is recognized as one of the state's leading heavy civil engineering firms. Graniterock's customers are public and private sector clients pursuing large infrastructure programs in California who require reliable materials and execution. In 2025, the company expanded its facilities to Redwood City, reflecting ongoing investment in its asset base to support ongoing projects.