PASADENA, Calif.–(BUSINESS WIRE)–Tetra Tech, Inc. (NASDAQ: TTEK), a leading provider of high-end consulting and engineering services, announced today that the U.S. Agency for International Development (USAID) awarded the Company a four-year, $19.5 million, single-award contract to implement the Water and Energy for Food (WE4F) Southern and Central Africa Regional Innovation Hub in collaboration with Open Capital Advisors and the International Water Management Institute. WE4F focuses on scalin