As of December 2025 Tenaris has a market cap of C$26.92 Billion. This makes Tenaris the world's 1145th 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 21st, 2025 the market cap of Tenaris was reported to be: