Ohio Casualty underwrites a variety of commercial property/casualty insurance products including property and general liability, equipment breakdown, workers' compensation, schools, and commercial farm policies. The company also offers loss prevention programs to its customers. Ohio Casualty sells its products through independent agents in seven mid-central and eastern states and Washington D.C. Historically, half of its customers are contractors or artisans, the rest are typically smaller business owners, including merchants and service providers. The company is owned by Liberty Mutual.
Liberty Mutual acquired Ohio Casualty in 2007 and added it to its stable of regional property/casualty and specialty insurance companies. As part of Liberty Mutual's Agency Markets business, Ohio Casualty now only offers commercial property/casualty insurance; its personal insurance business and specialty commercial insurance business were transferred to other Liberty Mutual companies.