Sienna Oy

Company profile with essential information such as contact details, location and registration details.

Public information on the income taxes of corporate taxpayers. Tax data for corporate entities and partnerships becomes public at the beginning of November in the calendar year following the tax year.

Entries in the Tax Debt Register. The Tax Debt Register is a public service that enables anyone to inquire about outstanding tax liabilities and negligence in tax return filing for all types of companies and self-employed businesses.