Hallmark Financial Services, Inc. (Hallmark) is an insurance holding company. Through its subsidiaries, the Company operates as a diversified property/casualty insurance company that serves businesses and individuals. It offers standard commercial insurance, specialty commercial insurance and personal insurance in selected market subcategories that are characteristically low-severity and short-tailed risks. It markets, distributes, underwrites and services its property/casualty insurance products through six operating units: Standard Commercial Workers Comp business unit, E&S Commercial business unit , General Aviation business unit , Excess & Umbrella business unit, and Personal Lines business unit . The Workers Comp business unit was acquired on July 1, 2011.