As of January 2026 Appian has a market cap of ยฃ1.81 Billion. This makes Appian the world's 4380th 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 Jan 12th, 2026 the market cap of Appian was reported to be: