1. Alpine Electronics Inc.
2. Arkamys
3. Bang & Olufsen A/S
4. Blaupunkt GmbH
5. Bose Corporation
6. Boston Acoustics
7. Bowers & Wilkins
8. Burmester Audiosysteme GmbH
9. D&M Holding Co.
10. Dirac Research AB
11. Dynaudio A/S
12. Faurecia Clarion Electronics Co. Ltd.
13. Fujitsu Limited
14. Harman International Industries Inc.
15. JL Audio Inc.
16. JVCKENWOOD Corporation
17. Klipsch Audio Technologies
18. MTX International
19. Onkyo Corporation
20. Panasonic Automotive Systems Co. Ltd.
21. Pioneer Corporation
22. QSC,LLC.
23. Rockford Corp.
24. Sonos Inc.
25. Sony Group Corporation