OREANDA-NEWS. A.M. Best has affirmed the financial strength rating (FSR) of A (Excellent) and the issuer credit ratings (ICR) of “a+” of the members of the Markel North America Insurance Group (Markel). A.M. Best has also affirmed the FSR of A (Excellent) and the ICRs of “a” of Markel Bermuda Limited (Hamilton, Bermuda) and its affiliated operating companies (collectively referred to as Markel Bermuda). I