| Company name | Reg. code |
|---|---|
| EBESS OÜ | 17456141 |
| EBERS SOLUTIONS OÜ | 16774809 |
| M-BESS OÜ | 16021671 |
| VENTUS BESS OÜ | 17203078 |
| VERDAX BESS OÜ (former name FinoKnots OÜ) | 14950627 |
| CLEO & BESS OÜ | 17167069 |
| RAUDSEPA BESS OÜ (former name Evecon Tsirguliina 2 OÜ) | 16104960 |
| ZIRGU BESS OÜ | 17402145 |
| VKG BESS OÜ | 17446390 |
| AMPERE BESS 1 OÜ | 17343141 |
| COIN BESS OÜ | 17373099 |
| TSIRGULIINA BESS HOLDINGS OÜ | 17417031 |
| NORDIC BESS DEVELOPMENT OÜ | 17423466 |
| RAUDSEPA BESS RIGHTS OÜ (former name Evecon Kopli OÜ) | 16104888 |
| KANEPI ENERGIA BESS OÜ | 17128916 |
| HARTVIK WORLD INVESTMENTS OÜ kustutatud (former name Bess Investments OÜ) | 12335384 |