UBS Group AG (stylized simply as UBS) is a Swiss multinational investment bank and financial services firm founded and based in Switzerland, with headquarters in both Zurich and Basel. It holds a strong foothold in all major financial centres as the largest Swiss banking institution and the world's largest private bank. UBS manages the largest amount of private wealth in the world, counting approximately half of The World's Billionaires among its clients, with over US$7 trillion in assets as of December 2025 (AUM).