International Marine Underwriters® (IMU) traces its roots to the early 1900s, and offers a full range of ocean and inland marine insurance solutions.
A longtime industry leader, our exceptional expertise and experience enables us to tailor the right coverage solution to meet your particular needs. IMU's regional, full-service focus means our network of professionals knows the local environment and can respond quickly. Our strong relationships with agents and brokers and financial stability result in comprehensive, dependable protection.
IMU is a member of OneBeacon Insurance Group, Ltd., a Bermuda-domiciled holding company publicly traded on the New York Stock Exchange under the symbol "OB". The company's insurance operating subsidiaries are rated "A" by A.M. Best for financial strength.