TETRA TECH INC 10-K

Item 2. Properties At fiscal 2025 year-end, we leased approximately 570 operating facilities in domestic and foreign locations. Our significant lease agreements expire at various dates through 2035. We believe that our current facilities are adequate for the operation of our business, and that suitable additional space in various local markets is available to accommodate any needs that may arise. The following table summarizes our ten most significant leased properties by location based on annual rental expenses (listed alphabetically, except for our corporate headquarters): Location Description Reportable Segment Pasadena, CA Corporate Headquarters Corporate Arlington, VA Office Building GSG Boston, MA Office Building GSG / CIG Irvine, CA Office Building GSG / CIG London, United Kingdom Office Building GSG / CIG Melbourne, Australia Office Building CIG New York, NY Office Building GSG / CIG Oakland, CA Office Building GSG Portland, OR Office Building GSG / CIG Sydney, Australia Office Building CIG