| # | Name | Location | Applications |
|---|---|---|---|
| 1. | SF ENERGY SRL | 🇮🇹 Legnano, Milan, Italy | 1 |
| 2. | SF ENERGY TECH CO., LTD | 🇰🇷 Seoul, South Korea | 1 |
| 3. | SFEG Corp. | 🇺🇸 Fairview, TN, United States | 1 |
| 4. | Sfera S.R.L. | 🇮🇹 Massa, Italy | 2 |
| 5. | Sfera S.R.L.S. | 🇮🇹 Massa, Italy | 1 |
| 6. | SFERA SRL | 🇮🇹 MASSA (MS), Italy | 1 |
| 7. | SFERIC STELLITE | 🇫🇷 MENARS, France | 3 |
| 8. | SFERIS | 🇫🇷 Villeneuve Les Magulone, France | 1 |