As of March 2026 Keisei Electric Railway Co., Ltd. has a market cap of ยฃ2.76 Billion. This makes Keisei Electric Railway Co., Ltd. the world's 3549th 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.