As of December 2025 Omnicom Group has a market cap of S$32.09 Billion. This makes Omnicom Group the world's 933th 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 22nd, 2025 the market cap of Omnicom Group was reported to be: