Liberty Northwest Insurance is a regional multiline insurer operating in five northwestern states: Alaska, Idaho, Montana, Oregon, and Washington. Its main business is providing workers' compensation insurance to area businesses, and it is the leading private workers' compensation insurer in some of its markets, including Oregon and Montana. However, Liberty Northwest also provides other kinds of commercial and personal coverage, including car, homeowners, business owners, and agribusiness insurance. A subsidiary of Boston-based insurance giant Liberty Mutual, the company is part of its parent's Agency Markets segment, a unit comprising Liberty Mutual's regional insurance carriers.