Amazon Web Services, Azure, SoftLayer, Rackspace 
HP, IBM, Dell
Cisco, Fortinet, Juniper, Silverpeak, F5, Riverbed, CoyotePoint, Barracuda
3PAR, EMC, NetApp, Brocade, Qlogic, Data Domain, FalconStor
VMware, Citrix, Microsoft, Red Hat, Openstack
Solar Winds, MacAfee, Symantec, Commvault, Veeam, Double-Take
Exchange, Lync, Avaya, ShoreTel
SQL, Oracle, WebLogic, WebSphere, MQ, Tomcat, Autosys
ITIL, PMI, TOGAF, SDLC, ITSM