W R Berkley Corporation an insurance holding company operates as a commercial lines writer in the United States and internationally It operates in two segments Insurance and Reinsurance Monoline Excess The Insurance segment underwrites commercial insurance business including premises operations commercial automobile property products liability and general and professional liability lines It also provides workers compensation insurance products accident and health insurance and reinsurance products insurance for commercial risks specialty environmental products for contractors consultants and property owners and facilities operators specialized insurance coverages for fine arts and jewelry exposures umbrella and excess liability coverage products and liquor liability and inland marine coverage for small to mediumsized insureds In addition this segment offers directors and officers and surety risk products as well as products for technology and life sciences and travel industries cyber risk solutions casualty group life and crime and fidelity related insurance products personal lines insurance solutions including home condocoop auto and collectibles automobile law enforcement public officials and educators legal and employment practices liability as well as incidental medical insurance products and atrisk and alternative risk insurance program management services The Reinsurance Monoline Excess segment provides other insurance companies and selfinsureds with assistance in managing their net risk through reinsurance on a portfolio basis through treaty reinsurance or on an individual basis through facultative reinsurance W R Berkley Corporation was founded in 1967 and is based in Greenwich Connecticut