We. Love. Linux.
Long gone are the early days, and Linux is today one of the most used Operating Systems out there, in pretty much any scenario.
We have System Administrators that are certified in all major distributions, and can figure out the right solution for all your requirements, support you the way you need, and generally make sure you are on tip top shape.
Linux is the preferred, not exclusive foundation on top of which we run applications like SugarCRM or Drupal.