| Company name | Reg. code |
|---|---|
| KRB HOLDING OÜ | 11697582 |
| KRF HOLDING OÜ kustutatud | 11656382 |
| KRS HOLDING OÜ | 16536694 |
| KRF HOLDING OÜ | 16282555 |
| IRB ALLIANCE HOLDING OÜ | 16879046 |
| NZULO MATANDA OÜ (former name KR Property Holding OÜ) | 14841973 |
| BIZWISOR OÜ (former name KRM Holding Plus OÜ) | 12018471 |
| SOLARFARM OÜ (former name CARLGUSTAV HOLDING OÜ) | 14077118 |