| Company name | Reg. code |
|---|---|
| ENERIK OÜ kustutatud | 12221226 |
| ENERIL OÜ | 16551050 |
| ENERIA OÜ | 14785105 |
| ENERIKEN TECH OÜ kustutatud | 14736940 |
| ENELIS OÜ kustutatud | 12355926 |
| ENERBIT OÜ | 17420249 |
| ENEREL OÜ | 11651657 |
| ENEFIT OÜ (former name Enefit AS) | 11184032 |
| ENEFIX OÜ | 11920554 |
| ENERGE EESTI OÜ | 11729260 |
| ENEREX PROJEKT OÜ | 12014964 |
| ENEFIT INDUSTRY OÜ (former name Enefit Power AS) | 10579981 |
| ENEFIT GROUP OÜ (former name Tootsi Tuulepark OÜ) | 14320903 |
| E-ENEREX OÜ | 17134584 |
| ENERCO HOLDINGS OÜ kustutatud | 12212724 |
| ENEFIT WIND OÜ | 14665542 |
| ENEFIT POWER OÜ | 17209649 |
| E-ENERGA OÜ | 12644582 |
| BALTIC ENELIN GRUPP OÜ | 11558580 |
| ENEFIT GREEN SOLAR OÜ (former name Rääbiste Põllud OÜ) | 12885475 |
| ENEFIT OUTOTEC TECHNOLOGY OÜ | 11693868 |
| EVERIK OÜ | 16136003 |
| ENERGY EXPRESS ENERGIA OÜ | 14147468 |
| EERIK HEINPALU OÜ | 16325106 |
| EMERIKO OÜ | 11064322 |
| DENERIS OÜ kustutatud | 14942728 |
| ANPRIK OÜ | 16944915 |
| ELERIT OÜ | 14951791 |
| EERIKU OÜ | 12359918 |
| BENERI OÜ | 10789023 |
| EGERIA OÜ (former name Egeria Kaubanduse osaühing) | 10303032 |
| EHARIK OÜ | 10325588 |
| ANERIS OÜ kustutatud | 14332728 |
| ENBRIG OÜ | 16183190 |
| ELERIC OÜ kustutatud | 12899023 |
| ELEREK OÜ | 12578908 |
| GLI ENERGIA OÜ (former name GLIMSTEDT Energia OÜ) | 12248604 |
| ASTEL ENERGY OÜ (former name Asteltech Energy OÜ) | 17055525 |
| KC ENERGY OÜ (former name Combiwood Energy OÜ) | 16051063 |
| CW ENERGY OÜ (former name Coal-Wood Energy OÜ) | 14241279 |
| MORO INDUSTRIAL OÜ (former name Energy24 OÜ) | 16019148 |
| EERIK'S ISLAND OÜ | 16847276 |
| TÕNIS-EERIK KUKK OÜ | 14750302 |
| EDA JA EERIK OÜ | 10356301 |
| EUROPEAN ENERGY ESTONIA OÜ (former name European Energia Estonia OÜ) | 16392551 |
| TMK ENERGY LÕUNA OÜ (former name OÜ SLG Energy Lõuna) | 11980154 |
| ENEFIT AS kustutatud (former name Enefit OÜ) | 16130213 |
| ELERIN EHITUS OÜ (former name TT Capital Holding OÜ) | 14050125 |
| ÕIGUSBÜROO EERIKA OÜ kustutatud (former name Õigusbüroo ENK OÜ) | 12652179 |
| DANERIK CONSULT OÜ | 11148941 |