Tetra Tech, Inc. (TTEK)
NASDAQ: TTEK · Real-Time Price · USD
30.99
+0.05 (0.16%)
At close: Jul 10, 2026, 4:00 PM EDT
30.93
-0.06 (-0.19%)
After-hours: Jul 10, 2026, 5:29 PM EDT
Tetra Tech Employees
Tetra Tech had 25,000 employees as of September 28, 2025. The number of employees decreased by 5,000 or -16.67% compared to the previous year.
Employees
25,000
Change (1Y)
-5,000
Growth (1Y)
-16.67%
Revenue / Employee
$176,125
Profits / Employee
$17,610
Market Cap
8.04B
Employees Chart
Employees History
| Date | Employees | Change (1Y) | Growth (1Y) |
|---|---|---|---|
| Sep 28, 2025 | 25,000 | -5,000 | -16.67% |
| Sep 29, 2024 | 30,000 | 3,000 | 11.11% |
| Oct 1, 2023 | 27,000 | 6,000 | 28.57% |
| Oct 2, 2022 | 21,000 | 0 | - |
| Oct 3, 2021 | 21,000 | 1,000 | 5.00% |
| Sep 27, 2020 | 20,000 | 0 | - |
| Sep 29, 2019 | 20,000 | 3,000 | 17.65% |
| Sep 30, 2018 | 17,000 | 1,000 | 6.25% |
| Oct 1, 2017 | 16,000 | 0 | - |
| Oct 2, 2016 | 16,000 | 3,000 | 23.08% |
| Sep 27, 2015 | 13,000 | -1,000 | -7.14% |
| Sep 28, 2014 | 14,000 | 0 | - |
| Sep 29, 2013 | 14,000 | 1,000 | 7.69% |
| Sep 30, 2012 | 13,000 | 0 | - |
| Oct 2, 2011 | 13,000 | 1,000 | 8.33% |
| Oct 3, 2010 | 12,000 | 2,000 | 20.00% |
| Sep 27, 2009 | 10,000 | 800 | 8.70% |
| Sep 28, 2008 | 9,200 | 1,400 | 17.95% |
| Sep 30, 2007 | 7,800 | 500 | 6.85% |
| Oct 1, 2006 | 7,300 | -400 | -5.19% |
| Oct 2, 2005 | 7,700 | -900 | -10.47% |
| Oct 3, 2004 | 8,600 | -300 | -3.37% |
| Sep 28, 2003 | 8,900 | 1,408 | 18.79% |
| Sep 29, 2002 | 7,492 | 92 | 1.24% |
| Sep 30, 2001 | 7,400 | 799 | 12.10% |
| Oct 1, 2000 | 6,601 | 1,158 | 21.28% |
| Oct 3, 1999 | 5,443 | 1,781 | 48.63% |
| Oct 4, 1998 | 3,662 | 1,400 | 61.89% |
| Sep 28, 1997 | 2,262 | 373 | 19.75% |
| Sep 29, 1996 | 1,889 | - | - |
Related Stocks
| Company Name | Employees |
|---|---|
| AECOM | 51,000 |
| Stantec | 26,000 |
| Fluor | 22,995 |
| IES Holdings | 10,283 |
| Everus Construction Group | 9,400 |
| MYR Group | 9,000 |
| Arcosa | 6,390 |
| Granite Construction | 2,500 |
TTEK News
- 3 days ago - Tetra Tech Announces Planned Dates for Third Quarter 2026 Results and Conference Call - Business Wire
- 4 days ago - Tetra Tech selected for $15M multiple city of Los Angeles award - TheFly
- 4 days ago - Tetra Tech Selected for $15 Million Multiple-Award City of Los Angeles Environmental and Digital Automation Contract - Business Wire
- 16 days ago - Tetra selected for $49M multiple-award U.S. Army Corps of Engineers contract - TheFly
- 16 days ago - Tetra Tech Selected for $49 Million Multiple-Award U.S. Army Corps of Engineers Contract - Business Wire
- 18 days ago - Tetra Tech awarded digital systems integration contract from California’s EWA - TheFly
- 18 days ago - Tetra Tech Awarded Digital Systems Integration Contract for Wastewater Authority in California - Business Wire
- 25 days ago - Tetra Tech selected by Scotland Excel - TheFly