
The Insurance Services Office (ISO), a subsidiary of Verisk Analytics, is a strategic partner to the global insurance industry. It provides statistical, actuarial, underwriting, and claims information and analytics, as well as compliance and fraud identification tools, policy language, and technical services. With a vast database of over 19 billion detailed records relating to insurance and risk management, the ISO assists insurers, reinsurers, agents, brokers, and other participants in the property/casualty insurance marketplace in making informed decisions, designing policies, and complying with statutory laws.
| Characteristics | Values |
|---|---|
| Type of Organization | Non-profit association of insurers (1971) then reorganized as a for-profit independent corporation (1993) |
| Year founded | 1971 |
| Focus | Property/casualty insurance, including personal and commercial lines |
| Services | Statistical, actuarial, underwriting, and claims information and analytics; compliance and fraud identification tools; policy language; information about specific locations; and technical services |
| Customers | Insurers, reinsurers, agents and brokers, insurance regulators, risk managers, and other participants in the property/casualty insurance marketplace |
| Headquarters | Jersey City, New Jersey, United States |
| Parent Company | Verisk Analytics, Inc. |
| Databases | More than 19 billion detailed records relating to insurance and risk management, with two billion records collected annually |
| Risk-related products and services | Risk-related products and services are developed by employees of the Casualty Actuarial Society and other insurance professionals |
| Data collection | Collects loss data from insurers that purchase its products and services, including premiums, losses, and expenses, which are then sold back to insurers |
| Policy writing | Provides pre-printed forms for insurers to use, reducing the time and cost associated with policy writing and minimizing risks |
| Financial reporting | Provides products for insurers to file their annual financial reports with state insurance regulators |
| Workers' compensation reporting | Offers tools to facilitate the process of filing rates, rules, and forms with state workers' compensation authorities |
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What You'll Learn
- Insurance Services Office (ISO) provides statistical and actuarial information to insurance companies
- ISO assists insurance companies in designing policies and complying with statutory laws
- ISO collects loss data from insurers and sells it back to them to assess profitability
- ISO provides products to help insurers file annual financial reports
- ISO offers tools to facilitate the process of filing rates, rules and forms to state workers' compensation authorities

Insurance Services Office (ISO) provides statistical and actuarial information to insurance companies
The Insurance Services Office (ISO), a subsidiary of Verisk Analytics, is a provider of statistical, actuarial, underwriting, and claims information and analytics. It serves insurers, reinsurers, agents, brokers, insurance regulators, and risk managers, among others in the property and casualty insurance marketplace.
ISO's databases contain over 19 billion detailed records relating to insurance and risk management, with two billion records added each year. This data is used to create policy language and proprietary risk classifications that are industry-standard. The data is also used to generate prospective loss cost estimates, which are used to price insurance policies. ISO's Commercial Lines Manual is a publication that outlines the rules and instructions for underwriting and rating the coverages provided by ISO policy forms. It is a resource for insurance underwriters, agents, and brokers, explaining how the various ISO forms are to be used.
ISO also provides pre-printed policy forms that insurers can use, saving them the time and cost of creating their own. These forms are also generally lower risk, as much of the policy language has already been analyzed by the courts. Many of ISO's policy forms are used as industry standards and serve as benchmarks for analyzing and comparing policies developed by individual insurers.
ISO was formed in 1971 as an advisory and rating organization for the property/casualty insurance industry. It provides statistical and actuarial services, develops insurance programs, and assists insurance companies in meeting state regulatory requirements. ISO employs many members of the Casualty Actuarial Society and other insurance professionals to develop its risk-related products and services.
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ISO assists insurance companies in designing policies and complying with statutory laws
The Insurance Services Office (ISO), a subsidiary of Verisk Analytics, Inc., assists insurance companies in designing policies and complying with statutory laws. It was formed in 1971 as an advisory and rating organisation for the property and casualty insurance industry. ISO provides statistical, actuarial, underwriting, and claims information and analytics, as well as compliance and fraud identification tools, to its clients. Its customers include insurance companies, reinsurers, agents and brokers, insurance regulators, and risk managers.
ISO assists insurance companies in designing policies by providing pre-printed policy forms that insurers can use to avoid the costly and time-consuming task of creating new policy forms from scratch. These pre-printed forms also reduce the risks associated with policy writing, as much of the policy language has already been analysed by the courts. The ISO Commercial General Liability Coverage Form, for example, is the industry standard for general liability coverage.
ISO also assists insurance companies in complying with statutory laws by providing products that insurers can use to file their annual financial reports to state insurance regulators. Additionally, ISO offers tools that facilitate the process of filing rates, rules, and forms with state workers' compensation authorities. ISO's databases contain more than 19 billion detailed records relating to insurance and risk management, which form the basis for its information services, with two billion records collected each year.
ISO collects loss data from the insurers that purchase its products and services, who are known as ISO subscribers. These subscribers report their premiums, losses, and expenses to ISO, which processes this data and sells it back to insurers. Insurers can then use this data to assess the profitability of each type of insurance and identify loss trends. ISO also provides information about specific locations, technical services, and policy language to its clients.
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ISO collects loss data from insurers and sells it back to them to assess profitability
The Insurance Services Office (ISO) is an insurance advisory organisation that provides statistical and actuarial information to businesses. It assists insurance companies in designing policies, complying with statutory laws, and accessing data-driven insights. One of the key services that ISO provides is the collection and sale of loss data from insurers to help them assess profitability.
ISO collects data from the insurers that purchase its products and services, who are known as ISO subscribers. These subscribers annually report their premiums, losses, and expenses, which are then categorised by the type of coverage. For instance, an insurer might provide separate data for commercial property, auto physical damage, and general liability. ISO then processes and sells this data back to insurers.
By purchasing data from ISO, insurance companies can assess the profitability of each type of insurance they offer. They can also identify loss trends, understanding whether losses are increasing or decreasing for certain types of insurance. This data is essential for insurers to make informed decisions about their rates and pricing.
In the past, ISO used the premium and loss data it collected to publish rates. ISO subscribers used these rates to calculate premiums for their customers. However, ISO's current focus is on publishing loss costs rather than rates. Insurers now use the loss cost data as a starting point to determine their own rates, adding charges for administrative expenses, taxes, and profit.
ISO also provides insurers with pre-printed policy forms, saving insurance companies the time and cost of creating new policy documents. These forms are widely used as industry standards and help insurers avoid the risks associated with policy writing. Courts have already analysed much of the language in ISO's forms, reducing the potential for misinterpretation.
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ISO provides products to help insurers file annual financial reports
The Insurance Services Office (ISO), a subsidiary of Verisk Analytics, provides products that help insurers file their annual financial reports. These products include tools for facilitating the process of filing rates, rules, and forms with state insurance regulators and workers' compensation authorities. For example, insurers can use pre-printed ISO forms, which have already been analysed by the courts, reducing the risk of misinterpretation.
ISO also performs physical inspections of buildings subject to specific ratings and collects claims data from insurers, storing it in a central database. This data is then sold back to insurers, who use it to assess profitability and identify loss trends. ISO's databases contain over 19 billion detailed records relating to insurance and risk management, with a few billion new records added each year.
In addition to providing data and tools for financial reporting, ISO assists insurance companies in designing policies, complying with statutory laws, and accessing data-driven insights. It provides statistical, actuarial, underwriting, and claims information and analytics; compliance and fraud identification tools; policy language; information about specific locations; and technical services.
ISO's customers include insurance companies, reinsurers, agents and brokers, insurance regulators, risk managers, and other participants in the property/casualty insurance marketplace. It was formed in 1971 as an advisory and rating organisation for the property/casualty insurance industry, and its headquarters are in Jersey City, New Jersey.
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ISO offers tools to facilitate the process of filing rates, rules and forms to state workers' compensation authorities
The Insurance Services Office (ISO), a subsidiary of Verisk Analytics, is a provider of statistical, actuarial, underwriting, and claims information and analytics. It assists insurance companies in designing policies, complying with statutory laws, and accessing data-driven insights. It was formed in 1971 as an advisory and rating organization for the property and casualty insurance industry. ISO's customers include insurance companies, actuaries, agents, brokers, and government entities.
ISO offers a range of risk-related services and products to its clients. It collects loss data from the insurers that purchase its products and services, who are known as ISO subscribers. These subscribers report their premiums, losses, and expenses to ISO, which are then categorized by the type of coverage. ISO processes this data and sells it back to insurers, who use it to assess profitability and identify loss trends.
In addition to providing data and analytics, ISO offers tools to facilitate the process of filing rates, rules, and forms with state workers' compensation authorities. This is particularly useful for insurance companies as it helps them avoid the costly and time-consuming task of creating new policy forms. By using pre-printed ISO forms, insurers can reduce the risks associated with policy writing. The ISO forms have been analyzed by courts and serve as benchmarks for comparing policies.
The Commercial Lines Manual, utilized by insurance underwriters, agents, and brokers, explains how to use the various ISO forms. It provides classification tables, rating rules, territory descriptions, and instructions for calculating premiums. It also guides users on when to attach specific endorsements to a policy to modify coverage. This manual is an essential resource for those in the property and casualty insurance industry, helping them navigate the complex world of insurance rates, rules, and forms.
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Frequently asked questions
The Insurance Services Office, or ISO, is an insurance advisory organisation that provides statistical and
The Insurance Services Office assists insurance companies in designing policies, complying with statutory laws, and accessing data-driven insights. It also provides risk-related services, including financial and workers' compensation reporting.
The Insurance Services Office serves insurers, reinsurers, agents and brokers, insurance regulators, risk managers, and other participants in the property/casualty insurance marketplace. Its customers include insurance companies, actuaries, agents and brokers, and government entities, such as fire and building code departments.









































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