The Hanover Insurance Group consists of companies such as The Hanover Insurance Company, Nova Casualty Company and Verlan Fire Insurance Company, as of 2015, notes the company. Farmers Insurance Group includes companies such as 21st Century, The Bristol West Insurance Group and Farmers Financial Solutions, states Farmers.
The Hanover Insurance Group is based in Worcester, Massachusetts, and is composed of property and casualty insurance companies, according to Hanover. Its companies offer policies such as worker's compensation, business owner's and commercial auto coverage. Farmers Insurance Group companies offer products such as vehicle, home and small-business insurance, states Farmers. The company's founders first provided vehicle insurance to farmers in 1928.