Opsales/Lenservice, Inc.
OPSIA
Optatint, Inc.
Optego Corporation
Opthonix, Inc.
Opti-Grip, Inc.
Optica Fukui, Inc.
Optical Enterprise, Inc.
Optical Sciences Group, Inc.
Optical Systems International Inc.
Optical Ventures, Inc.
Opticast International Corporation
Opticlear Inc.
Opticol Corporation
Opticorp, Inc.
OpticTools, LLC
Optifashion S.r. L.
Optigen S.r.l.
Optik Partner AG & Co.
Optiko Scientific Ltd.