| # | Name | Location | Applications |
|---|---|---|---|
| 1. | W SOLAR CO., LTD. | 🇰🇷 Daejeon, South Korea | 1 |
| 2. | WSOPTICS TECHNOLOGIES GMBH | 🇩🇪 Rettenbach am Auerberg, Germany | 2 |
| 3. | WSOU INVESTMENTS, LLC | 🇺🇸 Waco, TX, United States | 1 |
| 4. | WSOU Investments, LLC | 🇺🇸 Los Angeles, CA, United States | 14 |