1.Essilor International S.A.
2.Carl Zeiss Meditec AG
3.Corning Incorporated
4.Seiko Optical Products Co. Ltd.
5.Hoya Corporation
6.Transitions Optical Limited
7.Vision Dynamics LLC
8.Tokai Optical Co. Ltd
9.Optiswiss AG
10.Vision Service Plan
(Note: The companies list can be customized based on the client requirements)