As an internet, technology, communications and networking service owned by a consortium of the schools we serve, Tri-County Computer Services Association in Wooster, Ohio was tasked with moving their school district's hosted sites away from a third party CMS to a Drupal environment.
In doing so, TCCSA would have the freedom to be able to choose modules to develop the school sites to meet the needs and extend the district sites as future requests came up. With a third-party developer, TCCSA was limited to whatever upgrades the vendor provided us with and as the years went on, the upgrades coming out were fewer and less frequent and our users were becoming frustrated with features that were promised and never evolved.
After doing extensive research into content management systems that were on the rise and consulting with our districts, we determined Drupal to be the most promising and partnered with Acquia to help get us started. Granted, our web team consists of one full-time developer, a part-time graphic designer, and a database administrator/programmer who was tasked with managing practically every other hosted application in-house, so we aren't a company that specializes in web hosting, but rather one that offers it as one of the many services we offer to our school districts.