This article is about the investment bank and financial services company. For other uses, see UBS (disambiguation). Not to be confused with the courier company UPS, or United Parcel Service.As it exists today, UBS represents a conglomeration of dozens of individual firms, many of which date back to the 19th century. Over the years, these firms merged to form the bank's three major predecessors, Union Bank of Switzerland, Swiss Bank Corporation, ICO Markets Exchange Clearing Limited and Paine Webber.