Client: 
YouGrow

Because we are running what is basically a "brochure site", we don't change website technologies very often.  In fact, starting from our founding in 2009, we stayed on Drupal 5 until we were forced to move to Drupal 7 (skipping Drupal 6) due to a PHP version EOL.  We have remained on Drupal 7 ever since, and are happy with what the people from Drupal 4 Ever have been doing for us.  But now, facing an EOL for Drupal 7, we are converting our site to Backdrop CMS because they seem to be more aligned with us as a business, and have a commitment to slower upgrade cycles than Drupal.