| # | Name | Location | Applications |
|---|---|---|---|
| 1. | I.E.P.C. Corp. | 🇺🇸 Huntington Beach, CA, United States | 1 |
| 2. | IEP | 🇫🇷 Rueil-Malmaison Cedex, France | 2 |
| 3. | IEP Energies nouvelles | 🇫🇷 Rueil-Malmaison Cedex, France | 3 |
| 4. | IEP GmbH | 🇩🇪 , Germany | 1 |
| 5. | IEP GMBH | 🇩🇪 Wiesbaden, Germany | 14 |
| 6. | IEP TECHNOLOGIES, LLC | 🇺🇸 Marlborough, MA, United States | 2 |
| 7. | IEP2 RESEARCH PTY LIMITED | 🇦🇺 New Castle, New South, Australia | 1 |
| 8. | IEP2 RESEARCH PTY LIMITED | 🇦🇺 New Castle, New South Wales, Australia | 1 |
| 9. | IEP2 Research Pty Limited | 🇦🇺 , Australia | 2 |