TotalMarketCap

Market cap

$8.547 B

$33.38 +0.15%

Close of 7 Oct 2026

As of 7 Oct 2026, Tetra Tech (TTEK) has a market capitalization of $8.55B. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

$5.44B

#628 by revenue

Earnings

—

Not reported

Shares outstanding

256,044,428

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Military/Government/Technical, ranked by market cap

All 43 →
  1. #7Sterling InfrastructureSTRL$17.2B
  2. #8Jacobs SolutionsJ$16.3B
  3. #9Tetra TechTTEK$8.55B
  4. #10Kratos Defense & Security SolutionsKTOS$8.21B
  5. #11AecomACM$7.74B

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Where these numbers come from

Share counts and financials for Tetra Tech are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Last updated 8 Oct 2026. Read the methodology.