Tetra Tech EM Inc. Employee Directory
Environmental ServicesUnited States201-500 Employees
Tetra Tech EM Inc. is a United States–based environmental services firm that provides specialized consulting and engineering services for water, environment, and sustainable infrastructure projects. Its client base includes public utilities, ports, water companies, and regional or local governments, relying on its planning, assessment, engineering, and construction capabilities for complex infrastructure initiatives. The work covers initiatives such as hydropower dam spillway modernization, flood risk management, and other environmental engineering tasks tied to public works. In 2026, the company expanded its engagements with new clients, including taking the lead on design work for Chelan PUD’s progressive design-build hydropower dam spillway modernization project in Washington state. As a mid-sized United States firm, it operates within the environmental services sector, aligning with large-scale infrastructure programs and government-backed projects.
1-888-653-2347 
support@leadiq.com 
