?- KEMET Corporation
- Panasonic Corporation
- TDK Corporation
- Vishay Intertechnology Inc.
- Murata Manufacturing Co Ltd.
- AVX Corporation
- Taiyo Yuden Co Ltd.
- Nichicon Corporation
- WIMA GmbH & Co KG
- Cornell Dubilier Electronics Inc.
- Yageo Corporation
- Lelon Electronics Corp
- United Chemi-Con (Nippon Chemi-con Corporation)
- Bourns Inc.
- Wurth Elektronik Group
- API Delevan (Fortive Corporation)
- Eaton Corporation
- Coilcraft Inc.
- TT Electronics PLC
- KOA Speer Electronics Inc.
- TE Connectivity Ltd
- Ohmite Manufacturing Company
- Susumu Co. Ltd
- Arcol UK Limited
- Honeywell International Inc.