Operational for more than 100 years, CNA is one of the largest commercial insurers in the United States. It is a part of Continental Casualty Company. CNA also provides property and casualty insurance to small- and medium-sized businesses in Europe, Latin America, Canada and Hawaii. It offers management and professional liability insurance and risk management services to various professional firms, including architects, realtors, small- and medium-sized accounting businesses, law offices and technology companies. CNA s insurance products include standard commercial lines, specialty lines, surety, marine, and property and casualty coverage. It sells products primarily through an independent agency distribution system. Headquartered in Chicago, CNA employs more than 10,000 people. It maintains a presence in Houston.