Quanta Services (PWR) - Market capitalization

Market cap: £46.69 Billion

As of December 2025 Quanta Services has a market cap of £46.69 Billion. This makes Quanta Services the world's 355th 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 Quanta Services from 1998 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	£46.69 B	22.86%
2024	£38.01 B	54.45%
2023	£24.60 B	46.21%
2022	£16.83 B	39.06%
2021	£12.10 B	64.98%
2020	£7.33 B	66.01%
2019	£4.41 B	32.09%
2018	£3.34 B	-24.6%
2017	£4.43 B	8.57%
2016	£4.08 B	95.61%
2015	£2.08 B	-45.65%
2014	£3.84 B	-5.64%
2013	£4.07 B	13.19%
2012	£3.59 B	25.96%
2011	£2.85 B	4.67%
2010	£2.73 B	0.93%
2009	£2.70 B	1.87%
2008	£2.65 B	18.08%
2007	£2.24 B	90.39%
2006	£1.18 B	32.01%
2005	£0.89 B	84.89%
2004	£0.48 B	1.73%
2003	£0.47 B	207.85%
2002	£0.15 B	-76.1%
2001	£0.64 B	-48.45%
2000	£1.25 B	102.34%
1999	£0.61 B	115.49%
1998	£0.28 B

End of Day market cap according to different sources

On Dec 16th, 2025 the market cap of Quanta Services was reported to be:

£48.95 Billion

by Nasdaq

£48.94 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Emcor EME	£20.02 B	-57.11%	🇺🇸 USA
MasTec MTZ	£12.35 B	-73.54%	🇺🇸 USA
Dycom Industries DY	£7.44 B	-84.07%	🇺🇸 USA
Fluor Corporation FLR	£4.97 B	-89.34%	🇺🇸 USA
MYR Group MYRG	£2.47 B	-94.70%	🇺🇸 USA
IES Holdings IESC	£6.06 B	-87.01%	🇺🇸 USA
Primoris Services Corporation PRIM	£4.96 B	-89.36%	🇺🇸 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 Quanta Services (PWR)

Market cap: £46.69 Billion