Tetra Tech Inc
Statements
Segments
US companies must disclose in their mandatory reports how revenue breaks down across business segments, regions and product lines. We read that breakdown for you straight from the annual and quarterly reports (10-K and 10-Q) of Tetra Tech Inc (TTEK). It shows which part of the business is growing — and which one is holding it back.
Revenue by business segment
| Segment | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| CIG | $1.47B 48.2% | $1.50B 45.8% · +2.0% | $1.74B 48.8% · +15.9% | $2.42B 52.9% · +39.5% | $2.79B 52.9% · +14.9% | $2.84B 51.5% · +2.1% |
| GSG | $1.58B 51.8% | $1.77B 54.2% · +12.3% | $1.82B 51.2% · +2.7% | $2.16B 47.1% · +18.6% | $2.48B 47.1% · +15.0% | $2.67B 48.5% · +7.7% |
| RCM | $198.0K 0.0% | – | – | – | – | – |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
| Segment | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| CIG | $136.4M 9.3% | $152.3M 10.2% | $194.1M 11.2% | $243.8M 10.1% | $328.5M 11.8% | $356.9M 12.5% |
| GSG | $146.3M 9.3% | $174.8M 9.9% | $198.4M 10.9% | $231.8M 10.7% | $281.0M 11.3% | $340.6M 12.7% |
| RCM | – | – | – | – | – | – |
Large figure: segment operating income. Below it the margin, that is operating income measured against the revenue of the same segment.
Revenue by region
| Segment | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| United States | $2.11B 70.4% | $2.26B 70.2% · +7.1% | $2.42B 69.0% · +7.1% | $2.86B 63.3% · +18.5% | $3.20B 61.5% · +11.7% | $3.45B 63.3% · +7.7% |
| United Kingdom | – | – | – | $601.2M 13.3% | $711.6M 13.7% · +18.4% | $771.7M 14.2% · +8.4% |
| Canada | – | – | – | $436.2M 9.6% | $498.6M 9.6% · +14.3% | $512.3M 9.4% · +2.8% |
| Australia | – | – | – | $449.5M 9.9% | $529.1M 10.2% · +17.7% | $489.1M 9.0% · -7.6% |
| Other Countries | – | – | – | $172.0M 3.8% | $260.6M 5.0% · +51.5% | $223.6M 4.1% · -14.2% |
| Foreign countries | $887.4M 29.6% | $957.4M 29.8% · +7.9% | $1.09B 31.0% · +13.6% | – | – | – |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
Segment and region names are the ones the company itself uses and are shown as reported. Change and share refer to revenue.
Data as of: August 11, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q) · Segment figures: SEC EDGAR (10-K/10-Q reports)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.