Clarendon National Insurance Company leads a group of six companies owned by Clarendon Insurance Group. Clarendon is a member of the world's fifth-largest reinsurance group, Hannover Re, which in turn is affiliated with HDI Group, a German company with close to $1 billion in surplus and $20 billion in total assets. Licensed in 50 states, Clarendon operates in selected areas of property and casualty insurance with an emphasis on non-standard automobile, homeowners, workers compensation, and auto physical damage.

QBE Reinsurance Corporation is a subsidiary of QBE Insurance Group. QBE was established in North Queensland, Australia in 1886 and has grown into an international insurance and reinsurance group operating from over 200 offices in 30 countries worldwide. QBE Insurance Group is one of the largest publicly traded international insurers in Australia, with more than $680 million in shareholders equity and gross written premium in excess of $1 billion, according to A.M. Best.