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Ship Builders and heavy engineers of Sampierdarena, Genoa, Italy
1860 Gio. Ansaldo and Co began shipbuilding with the construction of two small flotilla of gunboats for the Garda
1886 with the acquisition of the Cadenaccio yard, Ansaldo moved it to its Sestri Ponente Mechanical Plant, and began constructing iron hulled steamers.
1903 Ansaldo agreed with W. G. Armstrong Whitworth and Co Ltd., owner of the Pozzuoli artillery plant, to form a joint company Gio Ansaldo Armstrong and Co., an industrial complex employing 16,000 workers.
1912 the agreement with Armstrong was ended and Ansaldo resumed its previous name.