As of December 2025 Gartner has a market cap of โน1.565 Trillion. This makes Gartner the world's 1246th 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.
On Dec 4th, 2025 the market cap of Gartner was reported to be: