• Abbott Laboratories
• Carl Zeiss AG
• Danaher Corporation
• Metall Zug AG (Haag-Streit AG)
• Nidek Co. Ltd.
• Thorlabs Inc.
• Topcon Corporation
• Agfa-Gevaert N.V. (IG Farben)
• Heidelberg Engineering Inc. (Heidelburg Engeneering GmbH)
• Novacam Technologies Inc.