As of January 2026 Compagnie de Saint-Gobain has a market cap of ยฃ35.94 Billion. This makes Compagnie de Saint-Gobain the world's 502th 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.