UBS Group AG is a Swiss multinational investment bank and financial services company founded and based in Switzerland.

Co-headquartered in the cities of Zürich and Basel, it maintains a presence in all major financial centres as the largest Swiss banking institution in the world. 

UBS client services are known for their strict bank–client confidentiality and culture of banking secrecy.

The bank's large positions in the Americas, EMEA, and Asia Pacific markets make it a systemically important financial institution within the broader economy of Europe. It was founded in 1862.

Apart from private banking, UBS provides wealth management, asset management, and investment banking services for private, corporate, and institutional clients with international service. UBS manages the largest amount of private wealth in the world, counting approximately half of the world's billionaires among its clients.

According to en.wikipedia