| Company name | Reg. code |
|---|---|
| PIPEHAK OÜ kustutatud | 14983974 |
| PIPEMAX OÜ kustutatud | 11625022 |
| PIPEMARK OÜ (former name Pipemark UÜ) | 14195786 |
| PIPEMAN OÜ (former name Rapesco invest OÜ) | 14108155 |
| PIPETEK OÜ | 12768083 |
| FIREWIND ENERGY OÜ kustutatud (former name iPeak International OÜ) | 12062236 |