UBS Group AG[nb 1] 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.[nb 2] 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.