As of January 2026 Quanta Services has a market cap of โฌ58.96 Billion. This makes Quanta Services the world's 334th 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 Jan 20th, 2026 the market cap of Quanta Services was reported to be: