Contact details of the Finnish Patent and Registration Office (PRH)

We register companies, associations, foundations and other organizations and corporations, as well as enterprise mortgages and LEI codes. We examine and grant patents and register utility models. We also register trademarks for products and services and provide design protection. We oversee and approve auditors and monitor foundations and the collective management of copyright.

Contact details of PRH services

We recommend that you use our online services where possible. Go to the Online services in English page.

In the menu, you will find the contact details of our services.

Our customer service point in Helsinki is open by appointment only at Sörnäisten rantatie 13 C, Mon–Fri 12.00–16.15.
Go to our customer service contact details.

The PRH is closed on official midweek holidays. See a list of the official midweek holidays.

PRH contact details

In the menu, you will find the contact details of our management and communications.

Telephone number

Our telephone exchange is open Mon–Fri from 8.00 to 16.15. The number is +358 29 509 5000. Read more about charges for calls made to numbers beginning with 0295.


Our email addresses are in the form Replace Scandinavian letters å, ä and ö with a, a and o, respectively.

Use our secure email if your message contains personal details (for example personal identity codes) or your matter is confidential. Read more about secure email and send a message.

Mailing address and visitor reception

The Registry manages the delivery of documents to the PRH. Go to the Registry contact details.

Our mailing address is Finnish Patent and Registration Office, FI-00091 PRH, Finland.

The address of our visitor reception is Sörnäisten rantatie 13 B, Helsinki.

Invoicing address

E-invoice address (online invoicing) / EDI identifier: 003702446831
Operator ID of OpusCapita Solutions Oy: E204503
PRH Business ID: 0244683-1
PRH VAT number: FI02446831