The Drupal Association
The Drupal Association (or DA as it is often referred to) is a not-for-profit organization that looks after the interests of the Drupal Community.
You can become a member of the association as an individual or a company, and the membership fees go toward maintaining the infrastructure of drupal.org as well as other educational and promotional initiatives. The association is also directly involved in organizing the annual Drupal conference known as DrupalCon.