- OSRAM Opto Semiconductors GmbH
- Lumileds Holding B.V.
- Broadcom Inc.
- Samsung Electronics Co Ltd
- Cree Inc.
- LG Innotek Co. Ltd.
- Everlight Electronics Co. Ltd.
- Koninklijke Philips N.V.
- Seoul Semiconductor Co. Ltd.
- Moritex Corporation
- Plessey Semiconductors Ltd.