About Us

Graniterock is a family-owned construction materials and services company founded in February 1900. Based in Watsonville, California, the company's construction division is a leader in heavy civil infrastructure projects, known for executing high-quality paving, excavating, grading, cold-in-place recycling, concrete finish work and underground utility services.

With its hard rock quarry in Aromas, Graniterock is one of California's premier suppliers of aggregate, sand, concrete, recycled asphalt and hot mix asphalt with facilities throughout the San Francisco Bay Area and Central Coast.

The company operates its own transportation division, including rail services, to deliver products to job sites across the state.