RLI Corp. (NYSE: RLI) is an American property and casualty insurance company headquartered in Peoria, Illinois, with more than 50 branch offices conducting business in all 50 states. Founded in 1965 by Gerald D. Stephens, Replacement Lens, Inc. (RLI) was one of the first insurers of contact lenses, and eventually, the company emerged as one of the leading contact lens insurers in the United States. Building upon its success in the contact lens market, RLI further expanded its business into other niche insurance markets. Today, the company offers specialty property/casualty insurance coverage in both the specialty admitted and excess and surplus markets. RLI conducts its operations primarily through four insurance subsidiaries — RLI Insurance Company, Mt. Hawley Insurance Company, RLI Indemnity Company and Contractors Bonding and Insurance Company. All of RLIs insurance subsidiaries are rated A+ (Superior) by A.M. Best Company, a distinction held by fewer than 10 percent of all property and casualty insurance companies in the country. RLI insurance coverages are distributed to customers across the U.S. through branch offices that market to wholesale brokers and retail agencies. RLI also provides select coverages through independent agents. The company offers nearly 40 different types of casualty, property and surety coverage ranging from individually underwritten coverages to highly complex coverages.