| Revenue | 728.51M |
| Subcontractor costs | -197.66M |
| Other costs of revenue | -433.67M |
| Selling, general and administrative expenses | -47.36M |
| Operating income | 47.19M |
| Interest expense - net | |
| Income before income tax expense | |
| Income tax expense | -13.12M |
| Net income including noncontrolling interests | 31.19M |
| Net income attributable to noncontrolling interests | -79K |
| Net income attributable to Tetra Tech | |
| Basic (in dollars per share) | 0.55 |
| Diluted (in dollars per share) | 0.53 |
| Basic (in shares) | -117.12M |
| Diluted (in shares) | -118.57M |