List of the largest software companies

Forbes Global 2000

The Forbes Global 2000 is an annual ranking of the top 2000 public companies in the world by Forbes magazine, based on a mix of four metrics: sales, profit, assets and market value. The top 10 companies in the 2011 list for the "Software & Programming" industry are:^[1]

1. Microsoft
2. Oracle
3. SAP
4. Accenture
5. Symantec
6. CA
7. Adobe Systems
8. Intuit
9. VeriSign
10. BMC Software

The Software 500

The Software 500 is an annual ranking by Software Magazine. The magazine sends out a yearly request for data: companies fill in their own data online. As Software Magazine is primarily read in the US, the list also has a slight focus on the US, although it is becoming more international every year. The companies are ranked according to software & services sales revenues. Both public and private companies are included.
The top 10 on the 2011 list were:^[2]

Company	Headquarters (region)	Software/services revenue-millions
IBM	3Armonk, NY	$78,659
Microsoft	3Redmond, WA (Seattle)	$54.426
HP	1Palo Alto, CA (Silicon Valley)	$38,520
Oracle Corporation	1Redwood Shores, CA (Silicon Valley)	$24,530
Accenture	99Dublin, Ireland	$21,551
EMC Corporation	4Hopkinton, MA (Boston)	$17,015
SAP AG	99Walldorf, Germany	$16,539
Computer Sciences Corporation	5Falls Church, VA	$16,128
NTT Data Corporation	6Tokyo, Japan	$12,290
Hitachi	6Tokyo, Japan	$12,254