As of April 2026 Quanta Services has a market cap of โน8.305 Trillion. This makes Quanta Services the world's 263th 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 Apr 14th, 2026 the market cap of Quanta Services was reported to be: