Welcome to the Georg Duncker website. Georg Duncker is a leading international marine insurance broker based in Hamburg. We offer support and advice via 70 dedicated professionals covering all relevant insurance markets worldwide. Our company also offers comprehensive advice in the field of reinsurance. Our clients enjoy the support of a successful, international company whose main focus is on the customer. Marine Insurance. More than 140 years of experience. Learn more. Our history. Behind every successful business there is always a good story. Read more about us. Home Claims hotline. In case of a claim it’s simple to contact us. We are available at all hours, including on Sundays and public holidays. Hotline: +49 171-750 26 73 Career Contact Georg Duncker Services Home Deutsch Legal Notice/Disclaimer Data Protection Marine Insurance Broker