We've been contributing Drupal developers since 2005, and have quite a few modules under our belts. All of the solutions we develop and recommend are Drupal-based, and we actively work towards building on Drupal initiatives that can build on your success.
We are open source developers through-and-through. Every project we do results in small or large enhancements to Drupal or its contributed modules, and a large portion of our hosting revenue is reserved for upgrading and debugging supported modules. This means that everyone who works with us has a solution that is both sustainable and future-proof.