1. Aspire Systems
2. Broadcom Inc.
3. Capgemini SE
4. Cigniti Technologies
5. Codoid
6. iBeta
LLC
7. Idera Inc.
8. Indium Software
9. International Business Machines Corporation
10. Keysight technologies
11. Micro Focus International PLC
12. Microsoft Corporation
13. Mindful QA LLC
14. Oxagile LLC
15. Parasoft
16. Perforce Software Inc.
17. QA Mentor Inc.
18. QAlified
19. Ranorex by Idera Inc.
20. Sauce Labs Inc.
21. ScienceSoft USA Corporation
22. SIA TestDevLab
23. SmartBear Software
24. TestMatick Ltd.
25. Tricentis