| # | Name | Location | Applications |
|---|---|---|---|
| 1. | E2 SYSTEM INC. | 🇰🇷 Gyeongsangnam-do, South Korea | 2 |
| 2. | E2S Power AG | 🇨🇭 Wilen b. Wollerau, Switzerland | 1 |
| 3. | E2S POWER AG | 🇨🇭 Wettingen, Switzerland | 1 |
| 4. | E2S2 SYSTEMS PTE. LTD. | 🇸🇬 Singapore, Singapore | 1 |
| 5. | E2ST Co., Ltd. | 🇰🇷 Seoul, South Korea | 1 |
| 6. | E2ST INC. | 🇰🇷 Seoul, South Korea | 1 |