PRH open data service: start using the new interfaces immediately

We have revamped the PRH open data service, which allows application developers to access company data. We have made technical changes to the service interfaces.

Start using the new interfaces immediately. You can use the old interfaces until 31 January 2025. After that you can no longer use the service with the old interfaces.

You will find the new interfaces and our instructions for use at https://avoindata.prh.fi/enOpen link in a new tab

The PRH’s open data are available free of charge. You can use the interfaces to add details about companies registered at the Finnish Trade Register to your application. Use the interfaces to access basic details from the Finnish Business Information System at ytj.fi, as well as notifications registered at the Finnish Trade Register.

For further information, please contact

Kirsi Lahtinen
Head of Customer and Information Services
Tel. +358 29 509 5808