Founded in 1996, Tetra Tech is one of the leading companies in the United States that provides consulting, engineering and technical services related to waterways, harbors and coastal areas. It assists commercial and government clients in the areas of resource management and infrastructure. The company additionally offers environmental, water and wastewater management, security design and infrastructure services. Tetra Tech works with individuals who specialize in science, research, engineering, construction and information technology. Its services include research and development, applied science and technology, program and construction management, operations and maintenance. The company employs more than 8,500 individuals and operates more than 280 offices worldwide. Headquartered in Pasadena, Calif., Tetra Tech maintains one of its offices in Rancho Cordova, Calif.