US Casualty (London)

Casualty - US

Liberty Specialty Markets underwrites North American casualty treaty reinsurance split by General Treaty Casualty, Medical Malpractice and Workers’ Compensation from our London office. Significant capacity is provided to the market via a wide range of bespoke products.

The General Treaty Casualty book’s main focus area is excess of loss North American casualty treaty, and we participate in a number of different areas of the market, including whole account clash, general liability risk exposed, auto liability excess of loss, professional liability, workers’ compensation, fidelity, title and umbrella & excess casualty quota-share. We are among the largest North American casualty reinsurance markets in Lloyd’s and lead some 60% of our business by premium volume.


  • General Treaty Casualty (North America)
  • Auto Liability
  • General & Umbrella Liability
  • Professional Liability
  • Workers Compensation
  • Fidelity
  • Environmental Liability

Cover is provided on an excess of loss basis (including clash covers)

Line Size

  • US Casualty (London) – USD/CAD 7.5 million per programme


  • US-domiciled cedants