Tetra Tech to Ring the NASDAQ Stock Market Opening Bell

Tetra Tech, Inc. (NASDAQ: TTEK) announced today that in celebration of the 50th anniversary of the Company’s founding and 25th anniversary as a publicly traded company, members of its management team will ring the NASDAQ Stock Market opening bell on Wednesday, December 14, 2016.

Founded in 1966 to provide innovative solutions in the areas of coastal engineering, research and development, geophysics, and systems analysis, Tetra Tech has grown into a 16,000-person global consulting and engineering firm specializing in water, environment, infrastructure, resource management, energy, and international development. Over the past 50 years, Tetra Tech has combined emerging technologies with practical engineering experience to deliver cost-effective and sustainable solutions to its clients.

As the Company’s services and operations have expanded, Tetra Tech has built a highly skilled team of scientists and engineers that serve local communities in over 100 countries. From the most remote areas of the arctic to the hottest regions of the tropics, Tetra Tech brings interdisciplinary solutions that are sensitive to local conditions and leverage the full resources of the company. By combining ingenuity and practical experience with cutting-edge technologies, Tetra Tech provides advanced solutions that address the essential needs for managing water, protecting the environment, providing energy, and engineering the infrastructure for cities and communities across the globe.

“Tetra Tech continues to build upon our 50-year legacy of leading with science, bringing innovative solutions to each of our client’s most complex problems,” said Dan Batrack, Tetra Tech Chairman and CEO. “We are honored to be able share our successes by ringing the NASDAQ opening bell and celebrating our historic anniversary as a publicly traded company.”

A live webcast of the bell ringing will be posted on the company’s website.

About Tetra Tech

Tetra Tech is a leading provider of consulting and engineering services. For 50 years, the Company has supported commercial and government clients focused on water, environment, infrastructure, resource management, energy, and international development. With 16,000 staff worldwide, Tetra Tech provides clear solutions to complex problems. For more information about Tetra Tech, please visit tetratech.com, follow us on Twitter (@TetraTech), or like us on Facebook.

Any statements made in this release that are not based on historical fact are forward-looking statements. Any forward-looking statements made in this release represent management’s best judgment as to what may occur in the future. However, Tetra Tech’s actual outcome and results are not guaranteed and are subject to certain risks, uncertainties and assumptions ("Future Factors"), and may differ materially from what is expressed. For a description of Future Factors that could cause actual results to differ materially from such forward-looking statements, see the discussion under the section "Risk Factors" included in the Company’s Form 10-K and 10-Q filings with the Securities and Exchange Commission.

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Tetra Tech, Inc.Jim Wu, Investor RelationsCharlie MacPherson, Media & Public Relations(626) 470-2844