As of December 2025 Sustained Infrastructure Holding Company (sisco) has a market cap of ยฃ0.52 Billion. This makes Sustained Infrastructure Holding Company (sisco) the world's 6599th 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.