Royal Caribbean Group is a cruise company, which engages in the ownership and operation of the following global cruise brands: Royal Caribbean International, Celebrity Cruises, and Silversea Cruises. The firm also holds interest in TUI Cruises GmbH, which operates the German brands TUI Cruises and Hapag-Lloyd Cruises. The company was founded by Arne Wilhelmsen in 1968 and is headquartered in Miami, FL.