As of March 2026 WESCO International has a market cap of A$19.70 Billion. This makes WESCO International the world's 1561th 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 Mar 3rd, 2026 the market cap of WESCO International was reported to be: