NASDAQ:TTEK 190.00 | Leading with Science® | Suppliers and Partners | English Español Français Português ABOUT SOLUTIONS REGIONS DELTA NEWSROOM CAREERS INVESTORS Search Consulting and Engineering Firm About About Previous Next Leading with Science® Tetra Tech is a leading, global provider of consulting and engineering services. We are differentiated by Leading with Science® to provide innovative technical solutions to our clients. We support global commercial and government clients focused on water, environment, sustainable infrastructure, renewable energy, and international development. With 21,000 associates worldwide, Tetra Tech provides clear solutions to complex problems. Who We Are Since 1966, Tetra Tech has been Leading with Science® to address our clients’ most complex needs. Our mission is to be the premier worldwide consulting and engineering firm. Our Company Our History Management Team Our Approach At Tetra Tech, we seek clear sustainable solutions that improve the quality of life. We embrace safety and sustainability in our business and operations. Social Responsibility Sustainability Health & Safety Our Global Presence Tetra Tech has 450 offices worldwide. We have the resources and global presence to complete today’s most demanding projects. Locations Contract Vehicles Contact Us What We've Done Tetra Tech is a full-service company with a global reach in the areas of water, environment, infrastructure, resource management, energy, and international development. Read about our projects and company recognition. Company Awards Our Projects Tetra Tech’s COVID-19 Response Tetra Tech is committed to supporting our employees, clients, and communities in responding to the challenges of COVID-19. Tetra Tech’s COVID-19 Response Our Team Previous Next Discover the many career opportunities awaiting you at Tetra Tech. Consider being a part of a complex world’s clear solution. Key Contacts Charlie MacPherson Media and Public Relations 3475 East Foothill Boulevard Pasadena, California 91107-­6024 USA +1 (626) 470-2439 charlie.macpherson@tetratech.com Jim Wu Investor Relations 3475 East Foothill Boulevard Pasadena, California 91107-­6024 USA +1 (626) 470-2844 jim.wu@tetratech.com Press Releases 17 Nov 2021 Tetra Tech Reports Record Fourth Quarter and Fiscal 2021 Results 09 Nov 2021 Tetra Tech Wins $22 Million USAID Urban Water and Sanitation Contract 02 Nov 2021 Tetra Tech Wins $110 Million USACE Dam Safety and Risk Management Contract 27 Oct 2021 Tetra Tech Acquires Enterprise Automation Expanding Its High-end Digital Water Solutions 20 Oct 2021 Tetra Tech Announces Planned Dates for Fourth Quarter and Fiscal 2021 Results and Conference Call Contact Us | Our Locations | Follow Us: Copyright © 2021 Tetra Tech, Inc. | Legal Notices | Site Map