National Grid (NGG) - Market capitalization

Market cap: S$98.95 Billion

As of December 2025 National Grid has a market cap of S$98.95 Billion. This makes National Grid the world's 285th 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	S$98.95 B	24.98%
2024	S$79.17 B	19.54%
2023	S$66.23 B	11.89%
2022	S$59.19 B	-15.36%
2021	S$69.94 B	27.4%
2020	S$54.90 B	-5.51%
2019	S$58.10 B	29.05%
2018	S$45.02 B	-15.21%
2017	S$53.10 B	-16.43%
2016	S$63.54 B	-13.61%
2015	S$73.55 B	3.66%
2014	S$70.95 B	15.53%
2013	S$61.41 B	21.5%
2012	S$50.54 B	13.07%
2011	S$44.69 B	11.83%
2010	S$39.97 B	-5.7%
2009	S$42.38 B	7.21%
2008	S$39.53 B	-42.78%
2007	S$69.09 B	1.17%
2006	S$68.29 B	37.59%
2005	S$49.63 B	-9.01%
2004	S$54.54 B	27.56%
2003	S$42.76 B	67.08%
2002	S$25.59 B	34.18%
2001	S$19.07 B

End of Day market cap according to different sources

On Dec 16th, 2025 the market cap of National Grid was reported to be:

S$97.12 Billion

by Nasdaq

S$97.08 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
NiSource NI	S$25.23 B	-74.49%	🇺🇸 USA
Consolidated Edison ED	S$46.70 B	-52.81%	🇺🇸 USA
DTE Energy DTE	S$34.50 B	-65.13%	🇺🇸 USA
Sempra Energy SRE	S$73.13 B	-26.09%	🇺🇸 USA
TC Energy TRP	S$72.86 B	-26.36%	🇨🇦 Canada
BP BP	S$113.44 B	14.64%	🇬🇧 UK
Unitil Corporation UTL	S$1.16 B	-98.82%	🇺🇸 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: S$98.95 Billion