Oy Suomi Shipping Ab was founded 1934. Rederi Ab Mars (Torsten Avellan), Ab Trio Steamship (C. S. Bergström), Oy Suomi Shipping Ab were merged to Oy Suomi Shipping Ab (C.S. Bergström) November 1938. R. Nordström & C:o acquired Suomi Shipping share majority 1950