As of April 2025 National Grid has a market cap of £53.06 Billion. This makes National Grid 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 15th, 2025 the market cap of National Grid was reported to be: