Praxis Labs Coop http://drupal.org/node/2098077

We are experts in the Aegir Hosting System, and thus also Drupal and Drush. We specialize in building hosting, development and continuous integration systems. Our expertise extends to related technologies, including Puppet, Jenkins, Vagrant and Varnish. We have also been know to take on complex development, deployment and e-commerce projects.

Our team's contribution to Drupal include:

• development and maintainance of the Aegir Hosting System;
• development and maintainance of a host of contrib modules to enhance Aegir;
• regular contributions to Drush;
• contributions to a number of other Drupal modules;
• occasional patches to Drupal core.