T. Mariotti S.p.A. is an Italian shipbuilder based in Genoa, Italy. The company specializes in building small cruise ship - mainly focused on the luxury market, superyachts and offshore vessels. The company also does refits of ships and yachts. T. Mariotti employs roughly 1,000 people.

Seabourn Venture is an ultra-luxury expedition cruise ship operated by Seabourn Cruise Line. The ship's hull was built built by the CIMAR Shipyard in San Giorgio di Nogaro and outfitted at T. Mariotti in Genoa. Its keel was laid in December 2019 and in March 2021 the hull was towed to Genoa to be completed. Sea trials began in April 2022 and the ship was delivered to Seabourn Cruise Line on 28 June 2022 in Genoa. It is Carnival Corporation's first expedition cruise ship.