Tetra Tech Information
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Tetra Tech
Summary
Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With 25,000 employees working together, T...Show more
Organization Website | tetratech.com |
Social Links |    |
Phone Number | 1(626) 351-4664 |
Industries | |
Headquarters Location | 3475 East Foothill Blvd., Pasadena, CA, 91107 US |
Employees Size | 10000+ employees |
Specialties | Water, Energy, Environment, Infrastructure, International Development, Resource Management, Technology Solutions, High Performance Buildings, Data Analytics, Artificial Intelligence, Asset Management, Design and Engineering, Emergency Management, Disaster Recovery, Laboratory Services, Solid Waste Solutions, Surveying and Mapping |
Competitors
Founded | Type | Employees | Revenue | Funding | |
|---|---|---|---|---|---|
| 1914 | Public Company | 25 - 100 | 28.1M | $4.4M | |
| 1879 | Public Company | 10K - 50K | 119.3B | $0 | |
| 1923 | Public Company | 10K - 50K | 12.1B | $0 | |
| 1919 | Public Company | 10K - 50K | 13.4B | $0 |
Subsidiaries and Affiliated Companies
Estimated Website Traffic
The chart shows a decline in traffic to the tetratech.com website. In November, traffic decreased to 151995, compared to 172127 in the previous month. The highest traffic in 2025 was recorded in July, reaching 222434 visits.
Employees Turnover 3 quarter 2025
Number of employees switched from or switched to
Total number all of employee turnover
Length of Employment
Employee tenure at Tetra Tech shows a diverse range of experience levels:
3% have been with the company for less than 1 year16% for 1–2 years17% for 3–4 years19% for 5–7 years14% for 8–10 years31% have over 11 years of service at Tetra TechEx-employees positions
In Company
In New Company
Contact top employees from
Tetra Tech
Purshotam Juriasingani
Vice President, Technology Development-Emerging Contaminants
Nefi Garza PE
WCS Regional Operations Manager
Tricia Moore
Navy CLEAN Deputy Program Manager
Amanda Hargrave
Senior Project Manager - Onshore Renewables
Merrick Jackinsky
Resource Efficiency Manager
Ray Spickler
Air Traffic Specialist III
David Salanty
Resource Efficiency Manager
Hoone David
Senior Permitting and Compliance Manager
Dylan Owen
Civil and Environmental Engineer
Ronald Celiz
Florida Transportation Design Manager
Jim Sanders
Lead Civil Designer
Johnny Guo
Senior Process Engineer
Julie Sorel
Agente de facturation
Orrin Foster
Technical Director -Geophysical Operations
Trevor Schoen
Junior Engineer-in-Training
Yuliya Muranets
Transportation Intern
Elizabeth Williams
Geotechnical Engineer, P.Eng.
Leonard Leong
Senior Systems Engineer
Chelsea Strange
Web Production Specialist
Elisabeth Kemmerer
Recruitment Marketing Specialist
Jean Pascal Valcourt
Estimateur - structure/civil
Kayla Lemaire
Contract Administrator
Kiara Jordan
Support Specialist
Marco Antônio de Oliveira Barbosa
Técnico de campo
Mariia Sheikh
Human Resources Manager (US State Department’s MEASURE Project)
Sirlei Fiocchi
Diretora de recursos humanos
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FAQ
Tetra Tech operates in the Building engineering industries. More details can be found on the official website: tetratech.com.
The headquarters of Tetra Tech are located in Pasadena, United States.
You can contact Tetra Tech by phone at 1(626) 351-4664.
Tetra Tech currently employs 10000+ people.
Well-known competitors of Tetra Tech include McCoy Global, Chevron, Ecolab and Halliburton.
