Allstate Corporation, founded on April 17, 1931, is a publicly traded insurance company headquartered in Northbrook, Illinois. Initially launched as part of Sears, Roebuck & Co., Allstate became fully independent in 1995 and trades on the New York Stock Exchange under the ticker symbol ALL. The company is one of the largest personal lines insurers in the United States, offering auto, home, renters, life, and business insurance, as well as retirement and investment products. Allstate operates through multiple brands, including Esurance, Encompass, and National General, and has expanded into technology-driven services such as telematics and identity protection. The company employs approximately 55,000 people and serves millions of households across the U.S. and Canada. As of 2025, Allstate maintains a strong market presence with thousands of agency locations nationwide.