| Company name | Reg. code |
|---|---|
| RRR HOLDINGS OÜ | 16384066 |
| ORR HOLDINGS OÜ | 17408432 |
| RRW HOLDING OÜ | 11913494 |
| RKR HOLDING OÜ | 16075552 |
| RRI18 HOLDING OÜ (former name Rener Invest OÜ) | 14409566 |
| RRA HOLDING OÜ | 14081887 |
| RCR HOLDING OÜ kustutatud | 10879200 |
| DRR HOLDING OÜ kustutatud (former name DRR Holding UÜ) | 14026635 |
| RRF8 HOLDING OÜ (former name Ramontas Ehitus OÜ) | 14048329 |
| RPR HOLDING OÜ kustutatud | 12119798 |
| MRR45 HOLDING OÜ (former name MetRem OÜ) | 14342081 |
| AIRION TECHNOLOGIES OÜ (former name RR Holding & Management OÜ) | 17179440 |