1. ambie Corporation
2. Apple Inc.
3. Audio Technica Limited
4. beyerdynamic GmbH & Co. KG
5. Blaupunkt GmbH
6. Boat by Imagine Marketing Services Pvt. Ltd.
7. Bose Corporation
8. GN Store Nord A/S
9. Grado Labs Inc.
10. Harman international Industries
Incorporated
11. HP Inc.
12. Koninklijke Philips N.V.
13. Koss Corporation
14. LG Corporation
15. Little Bird ApS
16. Logitech International S.A.
17. Motorola Solutions Inc.
18. Noise by Nexxbase Marketing Pvt Ltd.
19. Panasonic Holdings Corporation
20. Pioneer Corporation
21. pTron by Palred Electronics Private Limited
22. Rowkin LLC
23. Samsung Electronics Co. Ltd.
24. Shokz Holding Limited
25. Shure Incorporated
26. Skullcandy Inc.
27. Sonova Consumer Hearing GmbH
28. Sony Group Corporation
29. ULTRASONE AG
30. Zebronics India Pvt. Ltd