As per your request here I am providing you the lists of top software companies along with their headquarters:

The list includes:

Microsoft Redmond, WA, USA
Oracle Redwood City, CA, USA
SAP Walldorf, Germany
Salesforce.com San Francisco, CA, USA
Symantec Mountain View, CA, USA
VMware Palo Alto, CA, USA
Fiserv Brookfield, WI, USA
CA Technologies Islandia, NY, USA
Intuit Mountain View, CA, USA
Amadeus IT Group

Lists of top software companies in India:


Tata Consultancy Services
Wipro Limited
Infosys Limited
HCL Technologies Limited
Satyam Computers services Limited
Tech Mahindra Limited
Mphasis Limited
Patni Computer Systems
Oracle Financial Services Software Limited
3i Infotech Limited

List of other companies:

Global Software
Acumen Soft Technologies
Alliant Technologies Private
Emacct Consulting Pvt
Infoeweb
Matrix Solutions Pvt. Ltd.
NeoQuant Solutions Pvt. Ltd.
Nityo Infotech Services Pvt. Ltd.
Phoenix SoftNet Technologies P. Ltd.
Access Automation Pvt Ltd
Adisa Solutions Pvt Ltd
Apara Enterprise Solutions pvt Ltd
Bavales Software Solutions Pvt. Ltd.
Abakus IT Solutions Private
AgeSoft
All India Online Pvt
Aster Soft Tech
BE Software Solutions (P) Ltd.
CDW Networks
Connect Infosoft Technologies Pvt. Ltd