Headquartered in Columbus, Ohio, State Auto Financial Corporation is a property & casualty insurance holding company formed in June 1991 by State Automobile Mutual Insurance Company (Mutual), an Ohio mutual P&C company. Founded in 1921, Mutual currently owns 67% of STFC and three of its six subsidiaries maintain a quota-share reinsurance pooling arrangement with STFC, which allows for the sharing of premiums, losses, and expenses. Through its subsidiaries, the company writes a broad line of property and casualty insurance, including standard personal and commercial automobile nonstandard personal automobile homeowners commercial multi-peril workers' compensation general liability and fire insurance. Personal lines make up nearly half of the company's written and earned premiums (see Exhibit 1 below). Financial results are reported through three segments: State Auto standard insurance (STFC Pooled Companies), State Auto nonstandard segment, (SA National and Mid-Plains), and Meridian standard segment, (consisting of the standard insurance business of the former Meridian Mutual).
STFC distributes its products through approximately 22,800 independent insurance agents associated with nearly 3,000 agencies in 33 states, primarily in the central and eastern parts of the United States.