Tetra Tech

Tetra Tech is a provider of consulting, engineering, construction and technical services which includes resource management and infrastructure, based out of Pasadena, California, United States. With approximately 13,000 employees in various countries, including individuals with expertise in science, research, engineering, construction, and information technology. The company's annual revenue for the fiscal year ended September 30, 2012 was $2.02 billion. Their Slogan is, "Complex World. Clear Solutions."