Alcon Inc. Alltion (Wuzhou) Co. Ltd. ARI Medical Technology Co. Ltd. Carl Zeiss Meditec AG
Haag-Streit Surgical GmbH (Metall Zug AG)
Karl Kaps GmbH & Co. KG
Leica Microsystems GmbH (Danaher Corporation)
Olympus Corporation
Seiler Instrument Inc. Synaptive Medical Inc. Takagi Seiko Co. Ltd. and Topcon Corporation