Tetra Tech is a forward-thinking, progressive company that strives for the highest level of excellence.

Corporate Leadership
Dan L. Batrack Chairman, Chief Executive Officer	Leslie L. Shoemaker President	Steven M. Burdick Executive Vice President, Chief Financial Officer
William R. Brownlie Senior Vice President, Chief Engineer	Brian N. Carter Senior Vice President, Corporate Controller and Chief Accounting Officer	Craig L. Christensen Senior Vice President, Chief Information Officer
Preston Hopson Senior Vice President, General Counsel, and Secretary	Richard A. Lemmon Senior Vice President, Corporate Administration	Brendan O’Rourke Senior Vice President, Enterprise Risk Management

Operational Leadership
Derek G. Amidon President, Commercial/International Services Group and President, Client Account Management Division	Roger R. Argus President, Government Services Group and President, U.S. Government Division	Keith Brown President, Global Development Services Division
Stuart W. Fowler President, High Performance Buildings Division	Jill M. Hudkins President, Resilient and Sustainable Infrastructure Division	Bernard Teufele President, Canada and South America Division

Directors
Dan L. Batrack Chairman of the Board, Director since 2005	Gary R. Birkenbeuel Director since 2018	Patrick C. Haden Director since 1992
J. Christopher Lewis Director since 1988	Joanne M. Maguire Director since 2016	Kimberly E. Ritrievi Director since 2013
J. Kenneth Thompson Director since 2007	Kirsten M. Volpi Director since 2013	Li-San Hwang Chairman Emeritus