| BREL International | Maxwell Technologies | Nichicon America Corp |
| Cooper Electronics Technologies | Michicon Corp | Panasonic Industrial Co |
| Evans Capacitor Co | Powercache Ultracapacitors | |
| BREL International | Maxwell Technologies | Nichicon America Corp |
| Cooper Electronics Technologies | Michicon Corp | Panasonic Industrial Co |
| Evans Capacitor Co | Powercache Ultracapacitors | |