VOITTO+ company information database contains financial statements data for over 200.000 active and over 10.000 non-active Finnish companies.
Over 30 search criteria can be used to get comprehensive data on companies or company groups. You can find more information from users manual (pdf, in Finnish).
CD that is available in university’s network contains data for last five years (max) Years are usually 2015-2019. See example (in Finnish).