Tetra Tech (NASDAQ: TTEK) announced today that Coffey, a Tetra Tech Company, has been selected by the Australian Defence Infrastructure Panel (DIP) to provide essential infrastructure support and advisory consulting services to the Australian Department of Defence over a five-year period. Coffey also served on the previous Panel, which ran from 2010 to 2017.

The DIP was established in 2004 by the Australian Department of Defence to streamline access to high quality infrastructure-related professional services by awarding a select group of leading consulting and engineering firms the ability to perform critical infrastructure improvement work for the Australian government. Under the previous DIP, Coffey supported the development of improved air, water, and land infrastructure in Australia, including management of a $1.1 billion New Air Combat Capability Infrastructure project from initial study through construction. Under the new panel, Coffey will leverage the broader Tetra Tech platform to provide a wide range of infrastructure support and project management services ranging from initial site and capacity investigations to design reviews, site selection, and cost planning functions.

“We are very pleased that Coffey has been selected as one of the leading engineering firms to provide services to the Defence Infrastructure Panel,” said Dan Batrack, Tetra Tech’s Chairman and CEO. “This award comes at a critical time in infrastructure development in Australia. With the support of Tetra Tech’s industry-leading infrastructure platform, Coffey can provide best-in-class engineering services to the Australian Department of Defence.”

About Tetra Tech

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, 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.