Tetra tech headquarters details
3475 East Foothill Boulevard
Pasadena
California
91107-6024
United States
1966
Location map
Open in Google MapsAll Tetra tech office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Pasadena HQ | California | United States | Headquarters |
About Tetra tech
Tetra tech (Nasdaq (NASDAQ): TTEK) is headquartered in Pasadena, California, United States. Founded in 1966, the company operates across 11 countries with approximately 25,000 employees worldwide.
Where is Tetra tech's main office?
Tetra tech's main headquarters office is located at 3475 East Foothill Boulevard, Pasadena, California 91107-6024. This serves as the company's primary corporate address and is home to its executive leadership team.
Tetra tech regional offices
Beyond its headquarters in Pasadena, Tetra tech maintains 497 offices across 11 countries. Regional offices span 11 countries.
Tetra tech contact information
The main switchboard for Tetra tech headquarters can be reached at 1-626-351-4664. For investor relations, visit tetratech.com/investor-relations.
What does Tetra tech do?
Tetra Tech, Inc. provides specialized management consulting and engineering services. The Company focuses on water, environment, infrastructure, resource management, energy, and international development services. Tetra Tech serves government and commercial clients worldwide.
Frequently asked questions
Where is Tetra tech headquarters?
Tetra tech's headquarters is located at 3475 East Foothill Boulevard, Pasadena, California 91107-6024, United States.
How many offices does Tetra tech have?
Tetra tech operates 497 offices across 11 countries as of 2026.
What is Tetra tech's corporate address?
The official corporate address is 3475 East Foothill Boulevard, Pasadena, California 91107-6024.
When was Tetra tech founded?
Tetra tech was founded in 1966 and has grown to employ approximately 25,000 people worldwide.
What is Tetra tech's phone number?
The main phone number for Tetra tech headquarters is 1-626-351-4664.