HCC Medical Insurance Services is a global leader in professional insurance. Founded in 1974, it mainly provides medical insurance, senior property insurance, accidental casualty insurance and personal insurance to customers around the world. Its business covers the United States, the United Kingdom, Places like Spain and Ireland. The website is available in English and Spanish.

The National Association of Insurance Commissioners (NAIC) is an institutional support organization for setting insurance standards. It was founded in 1871 by insurance adjusters from 50 states, the District of Columbia, and five U.S. territories. and management. The association's offices are mostly located in Kansas, Missouri, New York, Washington and other places.

Berkshire Hathaway Cooperation is one of the world's largest property and casualty insurance companies. It was founded in 1956 by investor Warren Buffett and is headquartered in Omaha, United States. In the 2013 Fortune Global 500 ranking, Berkshire Hathaway ranked 18th. In addition to its main business in the insurance industry, the company has also invested in See's Candy, BYD, IBM, Coca-Cola, Burlington Northern Santa Fe Railroad, Kraft Foods, Wal-Mart, Bank of America, Wells Fargo, Heinz, and Exxon Mobil. and other companies in various industries. Also known as Berkshire Hathaway.

AETNA (Aetna Insurance Financial Group) is an American insurance company with a long history. It was founded in Hartford, Connecticut in 1819. It was named after Italy's famous Mount Etna (Italian: Etna). , began operating fire insurance, and in 1850 began life insurance business. In the 2013 Fortune Global 500 ranking, Aetna Insurance ranked 304th.