The Finnish national broadcasting company, YLE, must be one of the earliest institutional adopters of Drupal. They go all the way back to 2004 and Drupal 4.3! At the time, the YLE wanted community websites and commissioned Carl-Magnus Dumell, through the IT company he was working for at the time, to find a PHP-based product to launch their social web presence.
Bonus in this episode: the Organic Groups origin story!
Read the full post at the Acquia Developer Center: https://dev.acquia.com/podcast/meet-yle-drupal-finnish-national-broadcaster