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Teichert Aggregates is one of the largest producers of aggregate products in the United States. It has operations in several locations throughout Northern California and Central Valley. Teichert Aggregates produces a variety of graded rock and sand products for construction projects. Located in Rancho Cordova, Calif., it is a part of Teichert Materials, which provides a range of building materials, such as ready-mix concrete, asphalt and precast products. Teichert Materials also offers excavation, restoration and reclamation services and is a part of Teichert, which also operates Teichert Construction and Teichert Foundation. Founded in 1887, Teichert is a family-owned and operated business that undertakes construction projects for roads, sidewalks, curbs, gutters, airport runways and utility trenches. Teichert additionally provides earth moving, grading, paving and site preparation services.

Western Aggregates is a manufacturer and distributor of concrete and aggregates. The company is a subsidiary of Eagle Materials. Founded in 1964, Eagle Materials is a manufacturer and distributor of building materials, including gypsum wallboard, cement, recycled paperboard, concrete and aggregates. The company s products are used to build and renovate residential, commercial and industrial structures, as well as to build and improve roads and bridges. Its facilities include Illinois Cement Company, Mountain Cement Company, Nevada Cement Company, Texas Lehigh Cement Company, American Gypsum Company, Republic Paperboard Company, Centex Materials, Mathews Readymix and Western Aggregates. Eagle Materials is headquartered in Dallas. Western Aggregates is located in Marysville, Calif.