1. Audio-Technica Corporation
2. Audix Corporation
3. Beyerdynamic GmbH & Co. KG
4. Bosch Sicherheitssysteme GmbH
5. Bose Corporation
6. Carlson Audio Systems
7. Lectrosonics Inc.
8. Powersoft S.p.A.
9. QSC
LLC
10. Samson Technologies Corp.
11. Samsung Electronics Co. Ltd.
12. Sennheiser Electronic GmbH & Co KG
13. Sony Corporation
14. Stewart Audio Inc.
15. Wharfedale Pro by IAG Group Ltd.
16. Yorkville Sound