ReadSpeaker Holding B.V.
undisclosed
ReadSpeaker is a provider of online and offline text-to-speech solutions for the gaming and telecommunication sectors.
Vision-Ease Lens Corporation
undisclosed
Vision-Ease is a manufacturer, marketer and supplier of ophthalmic lens and sunglasses.
Daemyung Optical Co.,Ltd.
undisclosed
Daemyung Optical designs, manufactures and sells opticals.
Knecht & Müller AG
undisclosed
Knecht & Müller is a producer and distributor of eyeglasses and lenses for the Swiss market.