| # | Name | Location | Applications |
|---|---|---|---|
| 1. | E 2 Tech Limited | 🇺🇸 Houston, TX, United States | 1 |
| 2. | E2 Tech Limited | 🇺🇸 Houston, TX, United States | 2 |
| 3. | E2 Tech Limited | 🇳🇱 The Hauge, Netherlands | 1 |
| 4. | e2 Tech Limited | 🇬🇧 Aberdeen, United Kingdom | 2 |
| 5. | E2 Technologies, LLC | 🇺🇸 The Woodlands, TX, United States | 1 |
| 6. | E2Tech Limited | 🇳🇱 The Hague, Netherlands | 2 |
| 7. | e2Tech Limited | 🇺🇸 Houston, TX, United States | 5 |