Rubattino
After the Armistice, Trieste came under the rule of Italy. Reorganized as an Italian company under the name Cosulich Societa Triestina di Navigazione, or Cosulich STN, the line, now sailing under the Cosulich Line name, resumed service from Mediterranean ports to New York and South America. In 1932, the Cosulich Line and fellow Italian passenger companies Lloyd Sabaudo and Navigazione Generale Italiana were merged into the state-owned Italia Flotte Riunite (), or , though Cosulich was able to maintain its own management from Trieste. When was liquidated in 1937, Cosulich was absorbed into the replacement Italia Societa Anonima di Navigazione, or Italian Line.