National Grid (NGG) - Market capitalization

Market cap: £46.57 Billion

As of January 2025 National Grid has a market cap of £46.57 Billion. This makes National Grid the world's 331th 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 National Grid from 2001 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	£46.57 B	0.35%
2024	£46.41 B	17.91%
2023	£39.36 B	7.85%
2022	£36.50 B	-4.77%
2021	£38.32 B	25.89%
2020	£30.44 B	-7.37%
2019	£32.86 B	26.59%
2018	£25.96 B	-11.62%
2017	£29.37 B	-17.44%
2016	£35.58 B	1.4%
2015	£35.08 B	1.73%
2014	£34.49 B	17.37%
2013	£29.38 B	14.92%
2012	£25.57 B	15.15%
2011	£22.20 B	10.48%
2010	£20.10 B	7.73%
2009	£18.65 B	-1.09%
2008	£18.86 B	-21.95%
2007	£24.16 B	6.3%
2006	£22.73 B	31.53%
2005	£17.28 B	-0.74%
2004	£17.41 B	23.79%
2003	£14.06 B	52.95%
2002	£9.19 B	29.45%
2001	£7.10 B

End of Day market cap according to different sources

On Jan 4th, 2025 the market cap of National Grid was reported to be:

£47.26 Billion

by Yahoo Finance

£46.57 Billion

by CompaniesMarketCap

£46.53 Billion

by Nasdaq

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
NiSource NI	£13.67 B	-70.64%	🇺🇸 USA
Consolidated Edison ED	£24.88 B	-46.57%	🇺🇸 USA
DTE Energy DTE	£20.26 B	-56.48%	🇺🇸 USA
Sempra Energy SRE	£44.70 B	-4.03%	🇺🇸 USA
TC Energy TRP	£39.75 B	-14.66%	🇨🇦 Canada
BP BP	£64.71 B	38.93%	🇬🇧 UK
Unitil Corporation UTL	£0.70 B	-98.49%	🇺🇸 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 National Grid (NGG)

Market cap: £46.57 Billion