1. Accenture plc
2. Deloitte Touche Tohmatsu Limited
3. IBM Corporation
4. PricewaterhouseCoopers (PwC)
5. Ernst & Young Global Limited (EY)
6. KPMG International Cooperative
7. McKinsey & Company
8. Boston Consulting Group (BCG)
9. Bain & Company
10. Capgemini SE
11. Cognizant Technology Solutions Corporation
12. Infosys Limited