NASSCOM, the premier trade body and 'voice' of the IT software and service industry in India, recently released the rankings of Top 20 IT Software and Service exporters in India.

Here is the list:

Nasscom's Top 20 IT Software & Service exporters from India (2005-06)
1. TCS
2. Infosys
3. Wipro
4. Satyam
5. HCL
6. Patni
7. I-Flex
8. Tech Mahindra
9. Perot Systems (TSI Ltd)
10. L&T Infotech
11. polaris
12.Hexaware
13.Mastek
14.Mphasis
15.Siemens Information
16.Genpact
17.i-Gate
18.Flextronics Software
19.NIIT
20.Covansys

This list doesnt include ITES-BPO revenue/companies & compnies whose Corporate headquarters are located outside India, but who have an India-centric global delivery model AND
Who have not shared their India-centric revenue figures.

Methodology for ranking
NASSCOM sends out a detailed Snap Survey questionnaire annually to all its member companies, accounting for 95 percent of the Indian IT software and BPO industry revenue. Information collated through the questionnaire includes: aggregate performance; service lines; verticals and geographies. The Snap Survey form also takes into account the contribution of the 100 percent owned overseas subsidiaries after deducting all the double accounting.

Source: 1

Prashanth Rai