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| WAHL Optoparts GmbH | |
| Laser Optics, Inc. | ||
| LaCroix Optical Co. | ||
| SwissOptic AG | ||
| Hiteck Int. Ltd. | ||
| Laurel Industries | ||
| Optosigma | ||
| PFG Optics | ||
| Casix, Inc. | ||
| Moonlight Optics | ||
| Sunex Inc. | ||
| Dynasil Corporation | ||
| G S PLASTIC OPTICS | ||
| Esco Products | ||
| CVI Laser Corporation | ||
| Oriel Corporation | ||
| Melles Griot Optics | ||
| Brighten Optics Ltd. | ||
| Calphotonics Ltd. | ||
| Janos Technology | ||
| Heussner Optics, Inc. | ||
| Victor Kyburz AG / Kyburz Sapphire | ||
| JML Optical Industries, Inc. | ||
| Daheng Optical Instrument Factory | ||
| Optical Components, Inc. | ||
| IMPEX High Tech | ||
| UQG Optics Ltd. | ||
| Knight Optical | ||
| Nanjing Saifei Electro Optics Co., Ltd. | ||
| Xtal Optronics | ||
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