Lightcrest http://drupal.org/node/2365249

Lightcrest accelerates Drupal applications by deploying customers on architectures that have been optimized specifically for the Drupal technology stack. Through Lightcrest FSE (Full-Stack Engineering Services), customers enjoy on-going expertise in performance optimization, caching, and high availability. Clients can choose from dedicated private cloud infrastructure and hybrid cloud environments. All Lightcrest infrastructure is owned and operated by Lightcrest, giving customers the opportunity to optimize both custom hardware and software.