| Company name | Reg. code |
|---|---|
| RRW HOLDING OÜ | 11913494 |
| RRI18 HOLDING OÜ (former name Rener Invest OÜ) | 14409566 |
| RRA HOLDING OÜ | 14081887 |
| RRF8 HOLDING OÜ (former name Ramontas Ehitus OÜ) | 14048329 |
| RGW HOLDING OÜ kustutatud | 12073205 |
| RRR HOLDINGS OÜ | 16384066 |
| RR HOLDING & MANAGEMENT OÜ | 17281245 |
| AIRION TECHNOLOGIES OÜ (former name RR Holding & Management OÜ) | 17179440 |