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Atrium Underwriters Ltd

Atrium is a long established leading specialist insurance and reinsurance business, underwriting through Syndicate 609 at Lloyds. We operate within the Lloyd’s market and have a history dating back to the 1930s.

Atrium is rightly proud of a first class reputation amongst its stakeholders within the insurance market. This is based on unrivalled underwriting and claims expertise, exceptional long term performance and a 'best in class' managing agency. We underwrite a well balanced portfolio, covering a wide range of specialist marine, energy, aerospace, non-marine and liability classes.

Based in London and with offices in Singapore, the US and Canada, we provide access to our underwriting teams through our boxes located in the Lloyd's building as well as our other locations.
Product name Max Coverage Min Premium
Accident and Health
  • Bodily Injury
  • Kidnap and Ransom
  • Travel
Aviation and Aviation War
  • Aviation
Cargo, Fine Art and Specie
  • Inland Marine
  • Builders Risk
  • Business Interruption
  • Property Damage
International General Liability
  • Commercial General Liability
  • Product Liability
  • Public Liability
Marine Liability Max Coverage US$50M
  • Environmental Liability
  • Marine
  • Third-Party Damage
Marine Property
  • Marine
Political Violence Max Coverage GBP25M
  • Business Interruption
  • Property Damage
  • War and Terrorism
Professional Liability
  • Professional Liability
UK and International Property
  • Contents
  • Property Damage