1. Accenture PLC
2. Applause App Quality Inc.
3. Aspire Systems
4. Capgemini SE
5. CGI Inc.
6. Cigniti Technologies Limited
7. Codoid Innovations
8. Cognizant Technology Solutions Corporation
9. Cybage Software Pvt. Ltd.
10. DXC Technology Company
11. EPAM Systems Inc.
12. HCL Technologies Limited
13. IBM Corporation
14. Infosys Limited
15. Jade Global
16. Moolya Software Testing Pvt. Ltd
17. Orange Mantra
18. Planit Software Testing
19. Qualitest Group
20. ScienceSoft Corporation
21. SQS Software Quality Systems by Assystem SA
22. Tech Mahindra
23. TestingXperts
24. ThinkSys Inc.
25. User Testing Inc.
26. V2Soft Inc.