Gartner (IT) - Market capitalization

Market cap: £12.91 Billion

As of December 2025 Gartner has a market cap of £12.91 Billion. This makes Gartner the world's 1253th 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 Gartner from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	£12.91 B	-56.86%
2024	£29.93 B	7.27%
2023	£27.90 B	27.08%
2022	£21.95 B	7.8%
2021	£20.36 B	94.11%
2020	£10.49 B	0.15%
2019	£10.47 B	15.98%
2018	£9.03 B	9.37%
2017	£8.26 B	22.07%
2016	£6.76 B	34.27%
2015	£5.03 B	6.46%
2014	£4.73 B	19.5%
2013	£3.96 B	49.02%
2012	£2.65 B	25.22%
2011	£2.12 B	2.83%
2010	£2.06 B	93.14%
2009	£1.06 B	-6.6%
2008	£1.14 B	30.73%
2007	£0.87 B	-16.74%
2006	£1.05 B	22.93%
2005	£0.85 B	17.91%
2004	£0.72 B	14.13%
2003	£0.63 B	37.21%
2002	£0.46 B	-32.11%
2001	£0.68 B	70.8%
2000	£0.39 B	-52.15%
1999	£0.83 B	-35.99%
1998	£1.30 B	-41.95%
1997	£2.24 B	5.4%
1996	£2.13 B

End of Day market cap according to different sources

On Dec 8th, 2025 the market cap of Gartner was reported to be:

£12.29 Billion

by Nasdaq

£12.91 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Forrester Research FORR	£96.76 M	-99.25%	🇺🇸 USA
Nielsen NLSN	£7.54 B	-41.53%	🇺🇸 USA
Graham Holdings GHC	£3.51 B	-72.76%	🇺🇸 USA
Bright Horizons BFAM	£4.24 B	-67.11%	🇺🇸 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 Gartner (IT)

Market cap: £12.91 Billion