The Hanover Insurance Group | 92,365 followers on LinkedIn. The Hanover has provided insurance protection for individuals, families and businesses for more than 170 years. | The Hanover is a leading provider of property and casualty insurance in the United States. The Hanover distributes its products through a select group of independent agents and brokers. Together with its agents, the company offers specialized coverages for small and midsized businesses, as well as insurance protection for homes, automobiles and other personal items.