18. Carahsoft

2016 Rank: 20

Top Executive: Craig Abod, President

Location: Reston, Va.

www.carahsoft.com

Carahsoft inked an agreement with Virtustream to capitalize on U.S. government interest in migrating larger production environments to the cloud. The deal provided more government agencies with access to Virtustream as departments increasingly focus on moving strategic applications to the cloud. The $3 billion company also received authorization to sell Dell's Compellent storage line to federal customers. Prior to that, Carahsoft had been serving legacy EMC partners exclusively in the U.S. government space.