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| Hitachi Semiconductor | |
| Clairex Technologies | ||
| American Bright Optoelectronics Corp. | ||
| American Opto Plus LED Corp. | ||
| Vishay Intertechnology / Dale / Sprague / Vitramon / Roederstein | ||
| Epitex Incorporation | ||
| Fairchild Semiconductor 82 Running Hill Road - South Portland, ME 04016 USA - - | ||
| Industrial Fiber Optics, Inc | ||
| Optek Technology | ||
| Rohm | ||
| Stanley Electric | ||
| PD LD | ||
| Hamamatsu Photonic Systems | ||
| Sanyo Semiconductor | ||
| Agilent Technologies | ||
| SUNLED Corporation | ||
| Opto Technology Inc. | ||
| MicroLEDs (by Micro Lamps Inc.) | ||
| Infineon Technologies AG | ||
| Samsung Electro Mechanics (Passives, Opto & Peripherals) | ||
| Ligitek Electronics Co, LTD. | ||
| Boston Electronics Corporation | ||
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