Tetra Tech, Inc. (NASDAQ: TTEK), a leading provider of high-end consulting and engineering services in water, environment, and sustainable infrastructure, announced today that EirGrid plc—Ireland’s national electric grid operator—has selected Tetra Tech to support expansion of the country’s electricity transmission and distribution network infrastructure.

Tetra Tech’s energy engineers will design and deliver high-end ground investigations and engineering analysis to enable safe and sustainable construction of onshore and offshore grid infrastructure. Tetra Tech will use our in-house, advanced cloud-based software to conduct geotechnical and environmental surveying and optimize data collection and validation. Our work on this critical national infrastructure project will help secure long-term electricity needs across Ireland.

“Tetra Tech has decades of experience supporting our clients in Ireland to advance resilient infrastructure,” said Dan Batrack, Tetra Tech Chairman and CEO. “We look forward to using our Leading with Science^® approach to support EirGrid to deliver this historic project and create future proofed energy security for communities and businesses across the country.”

About Tetra Tech

Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With more than 25,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science^® to address the entire water cycle, protect and restore the environment, and design sustainable and resilient infrastructure. For more information about Tetra Tech, please visit tetratech.com or follow us on LinkedIn and 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 Form 10-Q filings with the Securities and Exchange Commission.

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