As of December 2025 Willis Towers Watson has a market cap of โฌ27.16 Billion. This makes Willis Towers Watson the world's 740th 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 13th, 2025 the market cap of Willis Towers Watson was reported to be: