WR Berkley has formed a UK reinsurance arm to be based in London.
Berkley Re UK will principally focus will be underwriting casualty and property treaty reinsurance.
Subect to regulatory approval, the UK branch is due to begin operations in the fourth quarter of 2011.
Former QBE head of casualty reinsurance, Richard Fothergill, has been named as president of Berkley Re UK. Elaine Perry has been appointed senior liability underwriter.
William R. Berkley, chairman and CEO said: "The formation of Berkley Re UK is a further step in our efforts to expand our global reinsurance footprint. We are particularly pleased to have such accomplished people with in-depth reinsurance experience join our organisation."