Sorry for the late answer. Here is at least something:
https://bf-lento.com/?lang=en
Turun Lentokerho - In English
Don't know about Turunlentokerho current fleet, they had Diamond aircrafts. BF-Lento is operating with old school Cessnas, they have place on Nummela as well. Which is their main "hub" as far as i know, after legendary Malmi Airport at Helsinki closed down for ugly reasons.
Hope this helps.