Royal Caribbean Group, formerly known as Royal Caribbean Cruises Ltd., is a global cruise holding company incorporated in Liberia and based in Miami, Florida. It is the world's second-largest cruise line operator, after Carnival Corporation & plc. As of March 2024, Royal Caribbean Group fully owns three cruise lines: Royal Caribbean International, Celebrity Cruises, and Silversea Cruises with 65 ships in the current fleet and 5 ships on order until 2028. They also hold a 50% stake in TUI Cruises and Hapag-Lloyd Cruises.

Carnival Corporation & plc is a British-American cruise operator with a combined fleet of over ninety vessels across nine cruise line brands and one joint venture with China State Shipbuilding Corporation (CSSC). A dual-listed company, Carnival is composed of two companies – Panama-incorporated, US-headquartered Carnival Corporation, and UK-based Carnival plc – which function as one entity. Carnival Corporation is listed on the New York Stock Exchange, whereas Carnival plc is listed on the London Stock Exchange with an ADR listing on the NYSE. Carnival is listed in both the S&P 500 and FTSE 250 indices.