Hello buddy as you want here we provide you list of top software companies as follows

Microsoft
IBM
Oracle
SAP
Ericsson*
Symantec
HP
EMC (excluding VMware)
Adobe
CA Technologies
VMware (a subsiduary of EMC)
Fujitsu
Salesforce.com
SAS
Hitachi
Intuit
Infor
Siemens
Dassault Systemes
Autodesk
Citrix
Cisco
BMC
NEC
Sage
Intel
Synopsys
Apple
Wolters Kluwer
SunGard
McKesson
ADP
NetApp
Hexagon
Cadence Design Systems
Attachmate Group
Trend Micro
ESRI
Teradata
Red Hat
Nuance Communications Inc.
PTC
DATEV
OpenText
Software AG
Avaya Inc.
Mentor Graphics
Cerner
TIBCO