UBS AG is a Swiss global financial services company that is headquartered in Basel and Zürich, Switzerland. The company provides investment banking, asset management, and wealth management services for private, corporate, and institutional clients worldwide, as well as retail clients in Switzerland. The company traces its origins to 1856, when the earliest of its predecessor banks was founded.

UBS is a joint-stock company according to Swiss law and is listed at the SIX Swiss Exchange and the New York Stock Exchange(NYSE). UBS is present in all major financial centers worldwide, with about 37% of its 64,617 employees working in the Americas, 37% in Switzerland, 16% in the rest of Europe, and 10% in the Asia Pacific region. It has a major presence in the United States, with its American headquarters located in New York City (Investment banking); Weehawken, New Jersey (Private Wealth Management); and Stamford, Connecticut (Sales & Trading). UBS's global business groups are wealth management, investment banking and asset management.