What sources does Overton track?

More information on the types and geographic focus of the sources in Overton

Overton tracks thousands of different sources of policy documents from 190+ different countries. New documents from those sources are automatically added to the database.

We collect policy documents from governments and official bodies but also from IGOs, think tanks and some NGOs: groups whose output is often aimed at influencing policy.

There isn’t a broadly accepted definition of what a “policy document” is, but Overton defines them very broadly as documents written for or by policymakers.

When logged in to Overton, you can see a complete list of sources on the Sources page. Users can also request new policy sources.

Updated on August 25, 2025

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