Insurance Services Office, Inc. (ISO), a subsidiary of Verisk Analytics, is a provider of statistical, actuarial, underwriting, and claims information and analytics; compliance and fraud identification tools; policy language; information about specific locations; and technical services.

[1] Headquartered in Jersey City, New Jersey, United States,[2] the organization serves clients with offices throughout the United States, along with international operations offices in the United Kingdom, Israel, Germany, India and China.

[4] It became a wholly owned subsidiary of Verisk Analytics in October 2009.

[5] ISO provides a number of risk-related services to its clients:[1] ISO's databases contain more than 19 billion detailed records relating to insurance and risk management, which form the basis for its information services,[6] with two billion records collected each year.

[7] ISO employs many members of the Casualty Actuarial Society and other insurance professionals to develop its risk-related products and services.