Tetra Tech (TTEK) Revenue & Revenue Breakdown

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Tetra Tech Revenue Highlights

Latest Revenue (Y)

$5.44B

Latest Revenue (Q)

$1.21B

Main Segment (Y)

Commercial/International Services Group

Main Geography (Y)

UNITED STATES

Tetra Tech Revenue by Period

Tetra Tech Revenue by Year

Date	Revenue	Change
2025-09-28	$5.44B	4.69%
2024-09-30	$5.20B	14.95%
2023-09-30	$4.52B	59.49%
2022-09-30	$2.84B	-11.76%
2021-09-30	$3.21B	36.83%
2020-09-30	$2.35B	-24.42%
2019-09-30	$3.11B	4.83%
2018-09-30	$2.96B	7.66%
2017-09-30	$2.75B	6.58%
2016-09-30	$2.58B	12.36%
2015-09-30	$2.30B	-7.43%
2014-09-30	$2.48B	-4.97%
2013-09-30	$2.61B	-3.59%
2012-09-30	$2.71B	5.36%
2011-09-30	$2.57B	16.90%
2010-09-30	$2.20B	-3.77%
2009-09-30	$2.29B	6.63%
2008-09-30	$2.15B	38.06%
2007-09-30	$1.55B	9.84%
2006-09-30	$1.41B	10.01%
2005-09-30	$1.29B	-10.54%
2004-09-30	$1.44B	67.01%
2003-09-30	$860.77M	16.21%
2002-09-30	$740.72M	1.46%
2001-09-30	$730.06M	-8.12%
2000-09-30	$794.58M	83.89%
1999-09-30	$432.10M	12.85%
1998-09-30	$382.90M	55.15%
1997-09-30	$246.80M	12.13%
1996-09-30	$220.10M	83.42%
1995-09-30	$120.00M	24.35%
1994-09-30	$96.50M	29.53%
1993-09-30	$74.50M	-

Tetra Tech generated $5.44B in revenue during NA 2025, up 4.69% compared to the previous quarter, and up 231.74% compared to the same period a year ago.

Tetra Tech Revenue by Quarter

Date	Revenue	Change
2025-12-28	$1.21B	-8.98%
2025-09-28	$1.33B	15.36%
2025-06-29	$1.15B	4.47%
2025-03-30	$1.10B	-7.82%
2024-12-29	$1.20B	4.62%
2024-09-30	$1.14B	3.15%
2024-06-30	$1.11B	5.41%
2024-03-31	$1.05B	3.69%
2023-12-31	$1.02B	-3.99%
2023-09-30	$1.06B	7.07%
2023-07-02	$987.56M	1.86%
2023-04-02	$969.57M	31.63%
2023-01-01	$736.56M	0.06%
2022-09-30	$736.12M	2.17%
2022-07-03	$720.49M	2.98%
2022-04-03	$699.64M	2.99%
2022-01-02	$679.33M	-4.20%
2021-09-30	$709.13M	11.14%
2021-06-27	$638.04M	6.37%
2021-03-28	$599.83M	-0.88%
2020-12-27	$605.17M	2.60%
2020-09-30	$589.81M	5.27%
2020-06-28	$560.28M	-23.68%
2020-03-29	$734.13M	-7.96%
2019-12-29	$797.62M	-5.21%
2019-09-30	$841.50M	1.90%
2019-06-30	$825.79M	14.28%
2019-03-31	$722.62M	0.72%
2018-12-30	$717.43M	-2.96%
2018-09-30	$739.34M	-3.33%
2018-07-01	$764.79M	9.22%
2018-04-01	$700.26M	-7.83%
2017-12-31	$759.75M	3.34%
2017-10-01	$735.19M	7.24%
2017-07-02	$685.54M	3.28%
2017-04-02	$663.78M	-0.76%
2017-01-01	$668.85M	-8.19%
2016-10-02	$728.51M	9.24%
2016-06-26	$666.87M	6.29%
2016-03-27	$627.38M	11.89%
2015-12-27	$560.71M	-3.06%
2015-09-27	$578.39M	0.57%
2015-06-28	$575.11M	1.83%
2015-03-29	$564.76M	-2.80%
2014-12-28	$581.06M	-6.61%
2014-09-28	$622.18M	-1.16%
2014-06-29	$629.50M	7.37%
2014-03-30	$586.28M	-9.22%
2013-12-29	$645.85M	-7.52%
2013-09-29	$698.38M	13.59%
2013-06-30	$614.84M	-4.23%
2013-03-31	$642.00M	-2.51%
2012-12-30	$658.54M	-8.46%
2012-09-30	$719.40M	5.07%
2012-07-01	$684.70M	9.67%
2012-04-01	$624.35M	-8.54%
2012-01-01	$682.63M	1.03%
2011-10-02	$675.66M	0.28%
2011-07-03	$673.79M	10.00%
2011-04-03	$612.57M	0.24%
2011-01-02	$611.12M	-2.59%
2010-10-03	$627.38M	11.56%
2010-06-27	$562.37M	19.77%
2010-03-28	$469.53M	-13.36%
2009-12-27	$541.96M	-5.77%
2009-09-27	$575.12M	4.31%
2009-06-28	$551.38M	5.57%
2009-03-29	$522.30M	-18.22%
2008-12-28	$638.68M	-1.62%
2008-09-28	$649.20M	15.05%
2008-06-29	$564.28M	22.30%
2008-03-30	$461.39M	-

Tetra Tech generated $1.21B in revenue during Q1 2026, up -8.98% compared to the previous quarter, and up 105.78% compared to the same period a year ago.

Tetra Tech Revenue Breakdown

Tetra Tech Revenue Breakdown by Product

Annual Revenue by Product

Product/Service	Sep 25	Sep 24	Oct 23	Oct 22	Oct 21
Government Services Group	$2.67B	$2.48B	$2.16B	$1.82B	$1.94B
Commercial/International Services Group	$2.84B	$2.79B	$2.42B	$1.74B	$1.33B
Remediation And Construction Management	-	-	-	-	$613.00K

Tetra Tech's latest annual revenue breakdown by segment (product or service), as of Sep 25: Commercial/International Services Group (51.55%), and Government Services Group (48.45%).

Quarterly Revenue by Product

Product/Service	Dec 25	Sep 25	Jun 25	Mar 25	Dec 24	Sep 24	Jun 24	Mar 24	Dec 23	Oct 23	Jul 23	Apr 23	Jan 23	Oct 22	Jul 22	Apr 22	Jan 22	Oct 21	Jun 21	Mar 21
Government Services Group	$525.51M	$587.68M	$673.02M	$661.42M	$751.78M	$670.63M	$640.55M	$597.13M	$575.04M	$593.52M	$531.05M	$563.25M	$471.07M	$455.83M	$459.99M	$448.96M	$456.10M	$511.81M	$488.70M	$473.83M
Commercial/International Services Group	$704.18M	$761.83M	$715.75M	$678.84M	$688.24M	$722.85M	$723.62M	$671.15M	$669.11M	$683.35M	$691.39M	$610.36M	$439.56M	$460.97M	$444.24M	$416.94M	$416.29M	$394.08M	$327.43M	$293.13M
Remediation And Construction Management	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	$143.00K	$470.00K	-

Tetra Tech's latest quarterly revenue breakdown by segment (product or service), as of Dec 25: Commercial/International Services Group (57.26%), and Government Services Group (42.74%).

Tetra Tech Revenue Breakdown by Country

Annual Revenue by Country

Country	Sep 25	Sep 24	Oct 23	Oct 22	Oct 21
CANADA	$512.29M	-	-	-	-
UNITED STATES	$3.45B	$3.20B	$2.86B	$2.42B	$2.26B
Other Countries	$223.63M	-	-	-	-
AUSTRALIA	$489.10M	-	-	-	-
Non-US	-	$2.00B	$1.66B	$1.09B	$957.43M

Tetra Tech's latest annual revenue breakdown by geography, as of Sep 25: UNITED STATES (73.77%), CANADA (10.97%), AUSTRALIA (10.47%), and Other Countries (4.79%).

Tetra Tech Peer Comparison by Revenue

Ticker	Company	Last Year Revenue	Last Quarter Revenue
FLR	Fluor	$15.50B	$3.37B
PRIM	Primoris Services	$7.57B	$2.18B
DY	Dycom Industries	$5.55B	$1.45B
TTEK	Tetra Tech	$5.44B	$1.21B
CAE	CAE	$4.28B	$1.13B
VMI	Valmont Industries	$4.10B	$1.05B
IESC	IES	$3.37B	$870.96M
ZWS	Zurn Elkay Water Solutions	$1.70B	$455.40M
AWI	Armstrong World Industries	$1.62B	$425.20M
AAON	AAON	$1.44B	$384.24M
PSN	Parsons	$100.00K	$1.62B

TTEK Revenue FAQ

What is Tetra Tech’s yearly revenue?

Tetra Tech's yearly revenue for 2025 was $5.44B, representing an increase of 4.69% compared to 2024. The company's yearly revenue for 2024 was $5.2B, representing an increase of 14.95% compared to 2023. TTEK's yearly revenue for 2023 was $4.52B, representing an increase of 59.49% compared to 2022.

What is Tetra Tech’s quarterly revenue?

Tetra Tech's quarterly revenue for Q1 2026 was $1.21B, a -8.98% decrease from the previous quarter (Q4 2025), and a 1.11% increase year-over-year (Q1 2025). The company's quarterly revenue for Q4 2025 was $1.33B, a 15.36% increase from the previous quarter (Q3 2025), and a 16.22% increase year-over-year (Q4 2024). TTEK's quarterly revenue for Q3 2025 was $1.15B, a 4.47% increase from the previous quarter (Q2 2025), and a 3.91% increase year-over-year (Q3 2024).

What is Tetra Tech’s revenue growth rate?

Tetra Tech's revenue growth rate for the last 3 years (2023-2025) was 20.34%, and for the last 5 years (2021-2025) was 69.37%.

What are Tetra Tech’s revenue streams?

Tetra Tech's revenue streams in p 25 are Government Services Group, and Commercial/International Services Group. Government Services Group generated $2.67B in revenue, accounting 48.45% of the company's total revenue, up 7.67% year-over-year. Commercial/International Services Group generated $2.84B in revenue, accounting 51.55% of the company's total revenue, up 2.08% year-over-year.

What is Tetra Tech’s main source of revenue?

For the fiscal year ending Sep 25, the largest source of revenue of Tetra Tech was Commercial/International Services Group. This segment made a revenue of $2.84B, representing 51.55% of the company's total revenue.