Tetra Tech: Number of Employees 2012-2025 | TTEK
Interactive chart of Tetra Tech (TTEK) annual worldwide employee count from 2012 to 2025.
- Tetra Tech total number of employees in 2025 was 25,000, a 16.67% decline from 2024.
- Tetra Tech total number of employees in 2024 was 30,000, a 11.11% increase from 2023.
- Tetra Tech total number of employees in 2023 was 27,000, a 28.57% increase from 2022.
- Tetra Tech total number of employees in 2022 was 21,000, a 0% decline from 2021.
| Tetra Tech Annual Employee Count | |
|---|---|
| 2025 | 25,000 |
| 2024 | 30,000 |
| 2023 | 27,000 |
| 2022 | 21,000 |
| 2021 | 21,000 |
| 2020 | 20,000 |
| 2019 | 20,000 |
| 2018 | 17,000 |
| 2017 | 16,000 |
| 2016 | 16,000 |
| 2015 | 13,000 |
| 2014 | 14,000 |
| 2013 | 14,000 |
| 2012 | 13,000 |
| 2011 | 13,000 |
| Sector | Industry | Market Cap | Revenue |
|---|---|---|---|
| Construction | Engineering - Research & Development Services | $9.570B | $5.443B |
| Tetra Tech is a leading provider of consulting, construction management, engineering, program management and technical services. It serves clients by providing cost-effective and innovative solutions on dealing with the fundamental needs for water, environmental and alternative energy services. Tetra Tech's has a diverse base of international and U.S. commercial clients, as well as U.S. federal and U.S. state and local government agencies. Tetra Tech reports its businesses under the following two segments: Government Services Group and Commercial / International Services Group. | |||
| Stock Name | Country | Market Cap | PE Ratio |
|---|---|---|---|
| Quanta Services (PWR) | United States | $78.149B | 54.31 |
| Sterling Infrastructure (STRL) | United States | $13.448B | 49.75 |
| AECOM (ACM) | United States | $11.417B | 16.85 |
| Babcock Group (BCKIY) | United Kingdom | $8.937B | 0.00 |
| Amentum Holdings (AMTM) | United States | $7.562B | 14.22 |
| Fluor (FLR) | United States | $7.331B | 19.60 |
| KBR (KBR) | United States | $5.245B | 10.81 |
| Legence (LGN) | United States | $5.035B | 0.00 |
| VSE (VSEC) | United States | $4.669B | 55.68 |
| Kadant Inc (KAI) | United States | $3.934B | 36.11 |
| Arcadis (ARCAY) | Netherlands | $3.907B | 0.00 |
| Chiyoda (CHYCY) | Japan | $2.557B | 15.67 |
| Vesuvius (CKSNY) | United Kingdom | $1.670B | 0.00 |
| Cardinal Infrastructure Group (CDNL) | United States | $0.915B | 0.00 |
| Magnera (MAGN) | United States | $0.496B | 0.00 |
| Mayville Engineering (MEC) | United States | $0.446B | 31.34 |
| Matrix Service (MTRX) | United States | $0.322B | 0.00 |
| Magnitude (MAGH) | Singapore | $0.237B | 0.00 |
| TSS (TSSI) | United States | $0.235B | 40.70 |
| Shimmick (SHIM) | United States | $0.142B | 0.00 |
| BioLargo (BLGO) | United States | $0.053B | 0.00 |
| Skyline Builders (SKBL) | Hong Kong, SAR China | $0.041B | 0.00 |
| SUs (SUGP) | Hong Kong, SAR China | $0.008B | 0.00 |
| SKK Holdings (SKK) | Singapore | $0.006B | 0.00 |