a person or organization that finds customers and arranges insurance for shipowners
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shipbroker UK US /ˈʃɪpˌbrəʊkər/ noun [C] TRANSPORT, COMMERCE
► a company that makes arrangements between ship owners and companies to transport their goods by ship, getting the best prices, arranging insurance, etc.: »
He went to work as shipbroker for a fleet of cargo vessels.
Financial and business terms. 2012.