No. 5: Cisco Systems
Headquarters: San Jose, Calif.
Snapshot: Cisco has made impressive gains selling servers. Like Dell, it has beaten the odds and reported a 43 percent quarterly jump in its server business in 2013. Its market share for servers shipped in 2012 stands at 2.6 percent, making it the fifth largest of the server pack.
Cisco entered the data center cloud business in 2009 and has seen tremendous growth. In a recent earnings call with investors and the media, Cisco CEO John Chambers said its data center business would be "a $2 billion-plus business in five years, growing revenue over 40 percent year-over-year in the most recent quarter, and we are not stopping."