Revenue (million US$)
|Hewlett-Packard (HP)||3,290||25.3 %|
|Fujitsu and Fujitsu Siemens (FSC)||634||4.9 %|
Source: Gartner (11-2006)
IMHO, choosing the right server company will ensure better supports, in terms of hardware, driver and service. Although price wise might be higher than lesser known companies, but in long term, you might save more.