21st Century Insurance

21st Century Insurance (NYSE: TW) is the ninth largest personal auto insurance stock company in the U.S. and insures nearly 1.2 million automobiles. 21st Century Insurance offers personal automobile, motorcycle, and umbrella insurance in California and automobile insurance in Arizona, Ohio, Illinois, and Indiana. The company receives much of its new business through referrals from current policyholders; the annual renewal rate of existing policyholders is over 90%.