1. Advanced Bionics AG
2. Amplifon
3. Cochlear Ltd.
4. Demant A/S
5. Envoy Medical Corporation
6. GN Hearing A/S
7. MED-EL Medical Electronics.
8. Medtronic Plc
9. Natus Medical Incorporated
10. Olympus America
11. Oticon Medical
12. Ototronix
13. Sonova Holding AG
14. Summit Health
15. Zhejiang Nurotron Biotechnology Co. Ltd