Well-known at C.N.O.I., where its divers regularly intervene, especially when boats are dry-docked on the Synchrolift, the company ImmerSub took delivery of a new work barge in 2019. Built at the shipyard, this barge is 16 m long, 6 m wide and weighs 42 tons (more than 57 tons when loaded), with a draft of only 0.44 m. Powered by two 150 horsepower engines, this barge should enable ImmerSub to develop its activities, in particular thanks to its ability to embark and operate a remotely guided underwater robot. ImmerSub intervenes, for example, on cargo ships waiting to enter port to clean the hulls of ships in open water.