Tetra Tech, Inc.
Tetra Tech, Inc. (Nasdaq: TTEK) provides consulting, engineering and technology services focused on water, the environment and sustainable infrastructure for public and private clients worldwide. Its work includes water and wastewater systems, environmental assessment and remediation, resilient infrastructure planning… From the company’s description.
Over the twelve months to Jun 28, 2026, Tetra Tech, Inc. reported revenue of $5.07B, down 7.6% from a year earlier, and net income of $436.70M. Its operating margin was 12.1%, and operations generated $567.40M in cash. In fiscal 2025, it reported revenue of $5.44B, up 4.7% from fiscal 2024, and net income of $247.95M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Tetra Tech, Inc. does
In the company’s own words
Tetra Tech, Inc. (Nasdaq: TTEK) provides consulting, engineering and technology services focused on water, the environment and sustainable infrastructure for public and private clients worldwide. Its work includes water and wastewater systems, environmental assessment and remediation, resilient infrastructure planning and design, energy and utilities, disaster management, buildings, and data analytics and digital solutions. Tetra Tech operates through two reportable segments: Government Services Group, serving primarily U.S. federal, state and local agencies and international development agencies, and Commercial/International Services Group, serving U.S. commercial and other international clients. In fiscal 2025, these segments generated 49.1% and 52.3% of revenue, respectively, before inter-segment eliminations. The company worked on more than 100,000 projects in over 100 countries and had more than 25,000 associates during fiscal 2025. Its Tetra Tech Delta portfolio includes analytics, digital and AI-enabled tools, including software subscriptions. The 2023 acquisition of RPS expanded its services and presence across energy transformation, water and program management markets. Its website is tetratech.com.
Company details
- Sector
- Industrials
- Industry (SIC)
- Professional Services
- Headquarters
- PASADENA, CA
- Fiscal year end
- September
- CIK
- 831641
- SIC
- 8711
Financial performance, year by year
Fiscal 2012–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Tetra Tech, Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · Tetra Tech, Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Tetra Tech, Inc.’s bonds, as funds hold them
Funds report holding 1 issues of Tetra Tech, Inc.’s debt, $114.29M at market value — what funds hold, not the company’s total debt. Weighted-average coupon 2.25%, maturing 2028 to 2028.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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