TETRA TECH INC
Tetra Tech, Inc. is an American consulting and engineering services firm based in Pasadena, California. The company provides consulting, engineering, program management, and construction management services in the areas of water, environment, infrastructure, resource management, energy, and international development.
Basic company information
Each field links to its source. Financial figures retain their reporting periods; background references are identified in the source list.
- Business sectors
- professional service [1]
- Company / filing name
- TETRA TECH INC [2]
- Headquarters location
- Pasadena [1]
- Founded
- 1966 [1]
- Legal form
- Delaware corporation [1]
- Official website
- www.tetratech.com ↗ [1]
- ISIN (reported securities)
- US88162G1031 [1]
- CIK
- 831641 [2]
- Country in background record
- United States [1]
- Symbols / exchanges
- TTEK (Nasdaq) [2]
Company positioning and business
Tetra Tech, Inc. is an American consulting and engineering services firm based in Pasadena, California. The company provides consulting, engineering, program management, and construction management services in the areas of water, environment, infrastructure, resource management, energy, and international development. [3]
Background text: Wikipedia contributors, Tetra Tech. Selected introductory paragraphs, licensed under CC BY-SA 4.0. Official filing data is cited separately.
Financial year, securities and disclosures
Listed securities: TTEK (Nasdaq). Multiple symbols may represent different share classes or securities of the same registrant. [2]
History and key events
Founding / inception date recorded in Wikidata. [1]
Financial results and regulatory disclosures
No individual financial documents have been indexed yet. Open the source to consult company disclosures. [2]
Related entities and concepts
Frequently asked questions
When was TETRA TECH INC founded?
Founded: 1966. The linked source provides the background record. [1]
Where is the headquarters of TETRA TECH INC?
Headquarters location: Pasadena. The linked source provides the background record. [1]
Which business sectors are recorded for TETRA TECH INC?
Business sectors: professional service. The linked source provides the background record. [1]
Sources and review dates
- Wikidata — company background record (CC0) ↗
- Company identity and profile data ↗
- Wikipedia contributors — Tetra Tech (CC BY-SA 4.0) ↗
Reviewed 23 October 2026. Financial periods and historical event dates are shown separately. Figures reflect their stated source dates; this page is not a live quote or investment recommendation.