The Farmers Insurance Group of Companies was founded in 1928 when Farmers Insurance Exchange, an automobile insurer, was formed. As customer demand for additional insurance services increased, the Fire Insurance Exchange and Truck Insurance Exchange were established for home and commercial insurance needs. Today, the Farmers Insurance Group of Companies is the country's third-largest writer of both private passenger automobile and homeowners insurance.

Foremost Insurance Company, located in Michigan, was acquired in March 2000. It leads the industry in insuring specialty products such as mobile homes, motor homes, travel trailers and specialty dwellings.

Farmers New World Life Insurance Company, headquartered in Mercer Island, Washington, offers a wide range of products from a fully flexible universal life product to traditional term and whole life plans and annuities marketed by Farmers agents.