Tetra Tech, Inc.

This figure is a rolling aggregate of every prime-award action ever reported for this recipient ID, new awards, modifications, option exercises, and de-obligations all flow into the same total, so the dollar amount shown above is a lifetime ledger rather than an annual budget. Interpreting it as a single-year spend would overstate current activity; interpreting it as a guaranteed revenue stream would overstate commitment, because modifications can cut scope or scope can simply lapse unexercised. The child classification also matters for how this record should be read: prime recipients hold the contract directly with a federal agency and are fully responsible for performance; parent-level rollups aggregate awards across subsidiaries, which can inflate totals for large conglomerates whose operating units compete separately. The UEI in the header is the post-2022 federal identifier that replaced the DUNS number, it persists across name changes, acquisitions, and reorganizations, making it the most reliable anchor for tracking this entity over time. For researchers, journalists, and procurement staff, the practical layer under this total is verification: USAspending.gov exposes every underlying transaction by award ID, so any totals on this page can be reconstructed action-by-action through the agency's advanced search. Contract amounts displayed here reflect obligations, money the government has committed, not outlays, which is cash actually disbursed, and the gap between obligation and outlay can span multiple fiscal years on multi-year contracts, so a large obligation total does not imply equivalent cash flow in any single period.