Steering you through

Our business is risk

Setting standards

We are a specialist marine insurance underwriting agency located in the City of London. We are market leaders of marine insurance products offering innovative, bespoke and trade specific risk transfer solutions to our clients.

We combine deep industry knowledge with a pro-active, can-do attitude to offer our policyholders operational value, a superior claims service and above all else, peace of mind.

Our Culture

At Amphitrite Underwriting we have a unique approach to risk. Exceptional comes as standard. We are driven by an entrepreneurial spirit that pushes us to constantly challenge market norms. We work in a horizontal and collaborative environment that encourages free thinking and empowered decision making.  We are committed to positioning ourselves at the forefront of the industry, anticipating and managing upcoming trends using in-depth research and risk intelligence.

Risk management

We implement end-to-end bespoke loss prevention and loss mitigation solutions across a diverse range of risks and products developed over decades of industry experience.

We maximise the value of our product offering providing a far superior product versus the traditional, more commoditised transactional approach to risk transfer.


Amphitrite Underwriting Limited is a Managing General Agent and Coverholder backed 100% by Arch Capital Group Ltd, a Bermuda based public limited liability company which writes insurance, reinsurance and mortgage insurance on a worldwide basis.

Arch Capital or ACGL has over $30bn in assets and a financial strength rating of A+ from Standard & Poor’s, Fitch and A.M. Best Company.

More on Arch Capital Group LTD:

To learn more about our specialist marine insurance underwriting agency, contact the team today on 020 4511 3340