American-British cruise company, Carnival Corporation & PLC owns and operates Italian cruise line Costa Cruises. Its Italian name is Costa Crociere. Headquartered in Genoa, Italy, Costa Crociere operates under three brands: Costa Cruises, AIDA Cruises and Iberocruceros.
Carnival is the world's largest operator of cruise ships, with more than 10 cruise brands deploying more than 100 vessels. Its well-known luxury vessels include the Queen Mary 2, Carnival Destiny and the Star Princess. Headquartered in Doral, Florida, in the United States and in Southampton, Hampshire, in the United Kingdom, Carnival's other brands include the Carnival Cruise Line, Cunard Line, Holland America Line, Princess Cruises and Seabourn Cruise Line. Its cruise brand, Fathom, begins operations in 2016.