Clean Energy Systems, Inc, 3035 Prospect Park Dr, Rancho Cordova, CA 95670, US

From Adolph Teichert's first Sacramento, Calif., job of building sidewalks around the State Capitol building in the 1880s, to laying thousands of miles of roads, sidewalks and highways, Teichert's roots run deep. Established in 1887, A. Teichert & Son remains one of California's oldest and most established companies. The Teichert family of companies includes Teichert Construction and Teichert Materials. Teichert Construction is a general contractor that provides services for sewer, drainage, water, utilities, earth moving, excavation, grading, paving and general site preparation for residential and commercial subdivisions, commercial developments, office complexes and shopping centers, as well as bridges, airport runways, dams, canals, levees, driveways, parks and recreational facilities. Teichert Materials is one of the largest aggregate producers in the United States, producing a variety of building materials for any size construction project. Its products include aggregate, ready mix concrete, asphaltic concrete and precast products. A. Teichert & Son is located in Sacramento.

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