| Company name | Reg. code |
|---|---|
| S&P ENERGY OÜ kustutatud | 12201241 |
| ENERGY SAVING PROJECT OÜ kustutatud | 12341858 |
| COMPANY SOLVER OÜ (former name Energy Window Store OÜ) | 14925303 |
| SPORT ENERGY PRODUCTION OÜ kustutatud | 11023582 |
| ESTONIAN HYDROGEN ENERGY SCIENTIFIC RESEARCH AND PRODUCTION CENTRE OÜ kustutatud | 16186702 |