| Company name | Reg. code |
|---|---|
| AENERGY OÜ | 12132304 |
| RENERGY OÜ kustutatud | 11996712 |
| RAENERGY OÜ kustutatud | 14766266 |
| BOS RENERGY OÜ (former name KC Pakri OÜ) | 17065943 |
| MENERGY GROUP OÜ kustutatud | 12122369 |
| BIO RENERGY OÜ kustutatud | 12585299 |
| ENTERGY OÜ kustutatud (former name Osajuht OÜ) | 14278466 |
| ENTERGY OÜ kustutatud | 14366727 |
| DENERGI OÜ | 14864218 |
| LAINERGY OÜ | 12976746 |
| SFENERGY OÜ | 17174017 |
| RMENERGY OÜ | 16650148 |
| KINERGY OÜ (former name OÜ SUCCESS REAL ESTATE) | 12317541 |
| INNERGY OÜ | 12431320 |
| AIRENERGY OÜ kustutatud | 11421532 |
| KLENERGY OÜ | 16852583 |
| SAVENERGY OÜ | 11682310 |
| ALTENERGY OÜ | 11990419 |
| ZYNERGY OÜ | 16989467 |
| ENERGYS OÜ | 17187787 |
| ENTERGY OÜ | 17349818 |
| EXAENERGY OÜ | 16420419 |
| GFENERGY OÜ kustutatud (former name Green Fuel Energy OÜ) | 12795418 |
| JUSO ENERGY OÜ | 12876329 |
| ENERGY CONSULT OÜ | 10883331 |
| PHH ENERGY OÜ kustutatud | 10907758 |
| NOVATOR ENERGY OÜ | 12603152 |
| SONCE ENERGY OÜ | 14856762 |
| KAAMOS ENERGY OÜ (former name Kaamos Trading OÜ) | 11695726 |
| ARS ENERGY OÜ kustutatud | 11509497 |
| ALTER ENERGY OÜ | 16960274 |
| EMERALD ENERGY OÜ | 12171936 |
| UONIC ENERGY OÜ | 14762570 |
| ENERGY BOOST OÜ | 16641913 |
| RN ENERGY OÜ | 14474523 |
| SCANDIC ENERGY OÜ kustutatud | 12052143 |
| GREEN ENERGY OÜ | 11126968 |
| PAROX ENERGY OÜ | 14737514 |
| CPO ENERGY OÜ | 16516496 |
| WESTERN ENERGY OÜ kustutatud | 11947820 |
| ALTARE ENERGY OÜ kustutatud | 12102792 |
| SOLID ENERGY OÜ kustutatud | 12651932 |
| TRILINI ENERGY OÜ kustutatud | 12817232 |
| PVA ENERGY OÜ (former name Red Cat Coin OÜ) | 14716630 |
| SIRIUS ENERGY OÜ | 14663106 |
| POSA ENERGY OÜ kustutatud | 14916139 |
| PROFUSION ENERGY OÜ | 12441620 |
| PURE ENERGY OÜ | 14029527 |
| HYDROGEN ENERGY OÜ (former name Parkpharma OÜ) | 16015469 |
| DELTA ENERGY OÜ kustutatud | 16183988 |