Are you looking for a YKI (National Certificate of Language Proficiency) course?
You can find information about courses on the Finnishcourses.fi page YKI courses.
Swedish language courses
Kurser i svenska
Do you know InfoFinland?
InfoFinland is a multi-language website providing vital information to people planning to move to Finland and to immigrants already living in the country. The website also helps authorities with multi-language communications. www.infofinland.fi