I just noticed somebody had googled this. Just in case some poor non-Finnish or Swedish speaker is out there trying to find somewhere for their poor frustrated offspring to kick a ball around, I had a quick look.
I translated the query into Finnish and the top result was Åbo IFK, a bilingual club that is 90% Swedish speaking. Honestly, it was. The page I linked to contains the contact details for the coaches of their 12 year old girls team. If that is not the appropriate team, I’m sure they can point people in the right direction.