Tetra Tech (TTEK) - Market capitalization

Market cap: £7.22 Billion

As of January 2026 Tetra Tech has a market cap of £7.22 Billion. This makes Tetra Tech the world's 2046th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of Tetra Tech from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£7.22 B	8.77%
2025	£6.63 B	-21.86%
2024	£8.49 B	21.8%
2023	£6.97 B	9.73%
2022	£6.35 B	-6.2%
2021	£6.77 B	48.39%
2020	£4.56 B	27.03%
2019	£3.59 B	59.36%
2018	£2.25 B	13.31%
2017	£1.99 B	-0.44%
2016	£2.00 B	93.38%
2015	£1.03 B	-2.98%
2014	£1.06 B	-2.91%
2013	£1.09 B	4.16%
2012	£1.05 B	21.09%
2011	£0.87 B	-13.27%
2010	£1.00 B	-2.69%
2009	£1.03 B	4.55%
2008	£0.98 B	55.82%
2007	£0.63 B	18.41%
2006	£0.53 B	2.96%
2005	£0.51 B	5.56%
2004	£0.49 B	-34.98%
2003	£0.75 B	86.53%
2002	£0.40 B	-43.6%
2001	£0.71 B	-16.39%
2000	£0.86 B	135.04%
1999	£0.36 B	-21.6%
1998	£0.46 B	72.16%
1997	£0.27 B	65.05%
1996	£0.16 B

End of Day market cap according to different sources

On Jan 19th, 2026 the market cap of Tetra Tech was reported to be:

£7.22 Billion

by Nasdaq

£7.22 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
AECOM ACM	£9.64 B	33.62%	🇺🇸 USA
Hill International HIL	£0.14 B	-98.01%	🇺🇸 USA
Clean Harbors CLH	£10.50 B	45.50%	🇺🇸 USA
Waste Management WM	£66.12 B	815.63%	🇺🇸 USA
ICF International ICFI	£1.32 B	-81.70%	🇺🇸 USA
Great Lakes Dredge & Dock Corp. GLDD	£0.75 B	-89.56%	🇺🇸 USA
MYR Group MYRG	£2.88 B	-60.07%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Tetra Tech (TTEK)

Market cap: £7.22 Billion