Williams Companies (WMB) - Market capitalization

Market cap: C$119.94 Billion

As of September 2026 Williams Companies has a market cap of C$119.94 Billion. This makes Williams Companies the world's 281th 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 Williams Companies from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	C$119.94 B	20.49%
2025	C$99.54 B	5.5%
2024	C$94.35 B	67.9%
2023	C$56.19 B	3.32%
2022	C$54.39 B	34.89%
2021	C$40.32 B	29.97%
2020	C$31.02 B	-17.37%
2019	C$37.54 B	3.31%
2018	C$36.34 B	14.68%
2017	C$31.69 B	0.86%
2016	C$31.42 B	17.67%
2015	C$26.70 B	-31.46%
2014	C$38.95 B	38.92%
2013	C$28.04 B	26.48%
2012	C$22.17 B	11.99%
2011	C$19.79 B	36.95%
2010	C$14.45 B	11.79%
2009	C$12.93 B	26.92%
2008	C$10.18 B	-51.29%
2007	C$20.91 B	15.19%
2006	C$18.15 B	17.4%
2005	C$15.46 B	41.68%
2004	C$10.91 B	65.39%
2003	C$6.60 B	199.59%
2002	C$2.20 B	-89.49%
2001	C$20.95 B	-21.8%
2000	C$26.79 B	37.96%
1999	C$19.42 B	-5.41%
1998	C$20.53 B	57.52%
1997	C$13.03 B	61.19%
1996	C$8.08 B

End of Day market cap according to different sources

On Sep 27th, 2026 the market cap of Williams Companies was reported to be:

C$119.94 Billion

by Nasdaq

C$119.94 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
TC Energy TRP	C$86.69 B	-27.72%	🇨🇦 Canada
Enbridge ENB	C$147.49 B	22.97%	🇨🇦 Canada
Ultrapar Participacoes UGP	C$10.71 B	-91.07%	🇧🇷 Brazil
Southwestern Energy SWN	C$11.10 B	-90.74%	🇺🇸 USA
Sea Limited SE	C$86.32 B	-28.03%	🇸🇬 Singapore
EQT Corporation EQT	C$44.99 B	-62.48%	🇺🇸 USA
Enterprise Products EPD	C$112.35 B	-6.32%	🇺🇸 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 Williams Companies (WMB)

Market cap: C$119.94 Billion