Tetra Tech, Inc. (TTEK)
NASDAQ: TTEK · Real-Time Price · USD
34.87
-0.27 (-0.77%)
Mar 6, 2026, 4:00 PM EST - Market closed
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
$178,288
Profits / Employee
$14,080
Market Cap
9.09B
Employees Chart
Employees History
| Date | Employees | Change | Growth |
|---|---|---|---|
| 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 | - | - |
Sources: Annual number of employees according to filings submitted to the U.S. Securities and Exchange Commission (SEC). Data is also manually gathered from company press releases, IPO filings, and other official sources.
Related Stocks
| Company Name | Employees |
|---|---|
| AECOM | 51,000 |
| Stantec | 26,000 |
| Fluor | 22,995 |
| Primoris Services | 18,526 |
| Dycom Industries | 15,623 |
| TopBuild | 14,707 |
| IES Holdings | 10,283 |
| Everus Construction Group | 9,400 |
TTEK News
- 16 days ago - Tetra Tech Selected for $100 Million Multiple-Award Environmental Services Contract - Business Wire
- 18 days ago - Tetra Tech Selected for Netherlands Water Engineering Framework - Business Wire
- 23 days ago - U.S. Army Corps of Engineers Selects Tetra Tech for $49 Million Multiple-Award A-E Design Contract - Business Wire
- 4 weeks ago - United Utilities Selects Tetra Tech to Provide Water Management Technology Solution for Leakage Reduction Program - Business Wire
- 5 weeks ago - Tetra Tech, Inc. (TTEK) Q1 2026 Earnings Call Transcript - Seeking Alpha
- 5 weeks ago - Tetra Tech Reports Strong First Quarter 2026 Results and Raises Fiscal Year 2026 Guidance - Business Wire
- 6 weeks ago - Tetra Tech Acquires Halvik Corp - Business Wire
- 7 weeks ago - Tetra Tech to Advance Its Program Advisory Practice - Business Wire