Tetra Tech Inc (TTEK) Revenue by Year

TTEK

Tetra Tech Inc generated $5.4B in revenue in fiscal year 2025. This represents an increase of 4.7% from the prior fiscal year. Over the trailing 12 months, Q4 FY2025 through Q3 FY2026, the same line adds up to $5.1B in revenue. The table below carries 15 fiscal years, from 2011 to 2025, and the quarters Tetra Tech Inc has filed alongside them.

FY2025 annual

Revenue $5.4B

YoY +4.7%

5Y CAGR +12.7%

10Y CAGR +9.0%

Source SEC Filings (10-K/10-Q) Latest period Q3 FY2026, ended Jun 28, 2026 Reported Jul 31, 2026 Currency USD

Annual figures, oldest first. Point at a bar to read its period.

TTEK Revenue by Fiscal Year

Figures are as reported in USD. Each change compares the year with the year before it, and each column links to the filing it was taken from.

Metric	TTM	FY2510-K	FY2410-K	FY2310-K	FY2210-K	FY2110-K	FY2010-K	FY1910-K	FY1810-K	FY1710-K	FY1610-K	FY1510-K	FY1410-K	FY1310-K	FY1210-K	FY1110-K
Revenue	$5.1B	$5.4B+4.7%	$5.2B+15.0%	$4.5B+29.1%	$3.5B+9.0%	$3.2B+7.3%	$3.0B-3.6%	$3.1B+4.8%	$3.0B+7.7%	$2.8B+6.6%	$2.6B+12.4%	$2.3B-7.4%	$2.5B-5.0%	$2.6B-3.6%	$2.7B+5.4%	$2.6B

TTM is the trailing twelve months, Q4 FY2025 through Q3 FY2026, summed from the four most recent quarterly filings.

TTEK Revenue by Quarter

Figures are as reported in USD. Each change compares the quarter with the same quarter a year earlier.

Metric	Q3'2610-Q	Q2'2610-Q	Q1'2610-Q	Q4'2510-K	Q3'2510-Q	Q2'2510-Q	Q1'2510-Q	Q4'2410-K	Q3'2410-K	Q2'2410-K	Q1'2410-K	Q4'2310-K
Revenue	$1.3B-4.5%	$1.2B-7.7%	$1.2B-14.8%	$1.3B-3.2%	$1.4B+1.9%	$1.3B+5.6%	$1.4B+15.7%	$1.4B+13.7%	$1.3B+16.1%	$1.3B+39.9%	$1.2B+36.1%	$1.2B+35.8%

What revenue means

Revenue is everything the company billed its customers over the period, counted before any cost of running the business comes out of it.

More Tetra Tech Inc financials

Frequently Asked Questions

What was Tetra Tech Inc's revenue in fiscal year 2025?

Tetra Tech Inc generated $5.4B in revenue in fiscal year 2025.

How fast is Tetra Tech Inc's revenue growing?

Tetra Tech Inc (TTEK) revenue rose by 4.7% year over year, from $5.2B to $5.4B in fiscal year 2025.

What is Tetra Tech Inc's revenue over the last twelve months?

Tetra Tech Inc (TTEK) reported $5.1B in revenue over the trailing 12 months, Q4 FY2025 through Q3 FY2026, summed from the four most recent quarterly filings.

How has Tetra Tech Inc's revenue changed over the years?

Across the 15 fiscal years this page covers, Tetra Tech Inc (TTEK) revenue went from $2.6B in fiscal year 2011 to $5.4B in fiscal year 2025.

What was Tetra Tech Inc's revenue in the most recent quarter?

Tetra Tech Inc (TTEK) reported $1.3B in revenue in Q3 2026. This represents a decrease of 4.5% from the same quarter a year earlier.

What does revenue mean on a financial statement?

Revenue is everything the company billed its customers over the period, counted before any cost of running the business comes out of it. This page lists what Tetra Tech Inc (TTEK) reported on that line in every period on record.