USAID Awards Tetra Tech $23 Million Contract for Improved Economic Growth in the Democratic Republic of the Congo

Tetra Tech, Inc. (NASDAQ: TTEK) announced today that the U.S. Agency for International Development (USAID) has awarded the Company a $23 million single-award contract to improve economic growth and food security in the Democratic Republic of the Congo (DRC).

Under the five-year Feed the Future Strengthening Value Chains Activity Contract, Tetra Tech will foster relationships between market exporters and local farmers to increase sales and the profitability of key, nutrient-rich crops in the DRC. To further stimulate the economy, Tetra Tech will also establish public-private partnerships that leverage private sector funding and will provide capacity building and credit facilitation training in the region. To measure the outcomes of the program’s activities, Tetra Tech will work alongside other USAID contractors to collaborate on joint monitoring, evaluation, and data collection.

“Tetra Tech is pleased to continue to support USAID’s efforts to improve economic growth and food security in developing countries,” said Dan Batrack, Tetra Tech’s Chairman and CEO.

About Tetra Tech

Tetra Tech is a leading provider of consulting and engineering services differentiated by Leading with Science® in providing innovative technical solutions to our clients. We support global commercial and government clients focused on water, environment, infrastructure, resource management, energy, and international development. With 16,000 associates 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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Jim Wu, Investor Relations

Charlie MacPherson, Media & Public Relations

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