- Maxwell Technologies Inc. (Tesla Inc.)
- Panasonic Corporation
- Nippon Chemi-Con Corp.
- LS Mtron Ltd
- CAP-XX Limited
- Murata Manufacturing Co. Ltd
- Supreme Power Solutions
- IOXUS Inc
- JSR Micro NV
- Shanghai Aowei Technology Development Co. Ltd.
- Taiyo Yuden Co. Ltd.
- TOKIN Corporation
- Skeleton Technologies
- AVX Corporation
- Spel Technologies Private Limited
- Evans Capacitor Company