Tetra Tech, Inc. (NASDAQ: TTEK) announced today that it has acquired coastal and oceanographic consulting firm Applied Science Consultoria Ltda. (ASA Brazil) based in Sao Paulo, Brazil. With the acquisition, ASA Brazil has changed its name to Tetra Tech. The firm has about 50 employees and provides oceanic modeling and engineering services primarily to offshore oil and gas companies. “Brazil’s oil is primarily located in deep water. This complex environment ideally aligns with Tetra Tech’s coastal and oceanographic expertise. The addition of ASA Brazil’s local knowledge and scientific expertise is an important next step in our Latin American expansion,” said Dan Batrack, Tetra Tech’s Chairman and CEO. This transaction is Tetra Tech’s second acquisition in Brazil, following the acquisition of the Brazilian mining engineering practice of CRA Engenharia Ltda. in June 2012. The terms of the acquisition were not disclosed. ASA Brazil is joining Tetra Tech’s Engineering and Consulting Services business segment. About Tetra Tech ( www.tetratech.com) Tetra Tech is a leading provider of consulting, engineering, program management, construction management, and technical services. The Company supports government and commercial clients by providing innovative solutions to complex problems focused on water, environment, energy, infrastructure, and natural resources. With more than 13,000 employees worldwide, Tetra Tech’s capabilities span the entire project life cycle. 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.