With over 275 offices worldwide and approximately 8,500 employees, Tetra Tech Inc. is a leading provider of consulting, engineering, and technical services. Founded in 1966, and listed on the NASDAQ, the company operates in three segments: Resource Management, Infrastructure Services, and Communications Services. Their corporate mission is to be the premier global consulting and engineering firm.

Headquartered in Pasadena, California, Tetra Tech began as a provider of engineering services related to waterways, harbors, and coastal areas. Today, they offer expanded services and their fiscal year 2007 revenues were $1.55 billion. Overall, the company provides environmental water/wastewater management, infrastructure services, communications support, systems support, security design, and outsourced technical services.

Their Resource Management division focuses on the management of water resources. They help support government programs for water quality improvement and environmental restoration. They also support the productive reuse of defense facilities as well as engage in strategic environmental resource planning. They