Italian Line

The company was founded in 1932 through a merger of the Genoa-based Navigazione Generale Italiana (NGI), the Turin-based Lloyd Sabaudo, and the Trieste-based Cosulich STN lines, encouraged by the Italian government. The new company acquired the Cosulich-owned ships Saturnia and Vulcania, the Lloyd Sabaudo-owned Conte Rosso, Conte Biancamano and Conte Grande and the NGI-owned Giulio Cesare, Duilio, Roma and Augustus. The same year two previously ordered ocean liners were delivered to the company: Rex, that won the Blue Riband in 1933, and Conte di Savoia.

In World War II the company lost many ships, including Rex and Conte di Savoia. Others were captured by the United States and converted into troopships; four of them survived the war: Conte Biancamano, Conte Grande, Saturnia, and Vulcania.

Commercial service was resumed in 1947 under the company's new name Società di navigazione Italia. In addition to the four vessels returned to the company by the United States, two new vessels, Andrea Doria and Cristoforo Colombo were commissioned in 1953 and 1954. In 1956, Andrea Doria, the company's three-year-old flagship collided with the Swedish ship Stockholm near Nantucket and sank, with passenger deaths estimated at 46 or 55. The company replaced Andrea Doria with Leonardo da Vinci, which went into service in 1960. This ship was based on the same design as Andrea Doria, but was larger, and featured technical innovations.

In the late 1950s aircraft passenger travel had yet to have a noticeable effect on ocean-going passenger numbers between the United States and the Mediterranean. The Italian Line, therefore, ordered two new ships: Michelangelo and Raffaello. Building the ships took longer than expected, and they were not delivered until 1965. Being late into service, they were unable to compete profitably on the North Atlantic route. Although planned for cruising as an alternative, the ships had several design flaws that made their use as cruise ships problematic.

Despite huge financial loss, the Italian Line operated the transatlantic route until 1976, after which the Leonardo da Vinci was withdrawn from service; the Michelangelo and Raffaello had been sold the previous year. The Cristoforo Colombo was also withdrawn from service at this time.

I.C.I. - Italia Crociere Internazionali

The Leonardo da Vinci became a cruise ship in 1977–78, after which it was withdrawn due to high fuel costs. In 1979 and 1980 the company operated two ex-Lloyd Triestino liners, Galileo Galilei and Guglielmo Marconi, as cruise ships, but this again proved unprofitable. The ship Ausonia was also charted for brief service under this line.

Because of the unprofitability of the cruise business, the Italian Line turned to freight shipping. It operated its principal container services between the Mediterranean, the west coast of North America, and Central and South America, carrying about 180,000 twenty-foot equivalent units (TEU) of freight in 2001.

Previously owned by the Italian government, the company was privatized in 1998 when sold to an italian private owner. In August 2002, it was acquired by CP Ships, and in 2005 the Italian Line name ceased to exist following CP's one-brand strategy. CP Ships itself was bought-out in late 2005 by TUI AG, and merged with Hapag-Lloyd in mid-2006.