- Samsung Electronics Co. Ltd.
- OSRAM Opto Semiconductors GmbH
- Nichia Corporation
- LG Innotek
- Seoul Semiconductor Co. Ltd.
- Stanley Electric Co. Ltd.
- Lumileds Holding BV
- Everlight Electronics Co. Ltd.
- Toyoda Gosei Co.
- Dow Corning
- Citizen Electronics Co. Ltd.
- TT Electronics PLC