Soon, it will be subtitled in English.

Underwriters or insurers. Companies that insure ships, cargo etc. They are located in major shipping centers, such as London and New York, and cooperate with insurance brokers.
Comments: Many offices of insurance brokerage firms -in which insurance brokers work- are located in Greece and abroad, who come in contact with shipowners, cargo owners etc. to insure their ships or their cargoes respectively.

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