| Company name | Reg. code |
|---|---|
| QRB OÜ kustutatud | 12912924 |
| IRB OÜ | 17035793 |
| MRB OÜ | 11484165 |
| ARB OÜ kustutatud | 16492241 |
| HRB OÜ | 12983060 |
| DRB OÜ kustutatud | 14501198 |
| VRB OÜ | 17339435 |
| QCB OÜ kustutatud | 16583021 |
| URB2.0 OÜ | 14646361 |
| SRB OÜ | 14051461 |
| TRB OÜ | 11810104 |
| BRB OÜ | 14813445 |
| QRS OÜ | 14487997 |
| GRB OÜ | 16930422 |
| 222URB OÜ | 16579640 |
| RRB MANAGEMENT OÜ | 16561290 |
| MRB BUSINESS OÜ | 16027124 |
| SAGE ORB OÜ | 16257863 |
| URB VENTURES OÜ | 17408544 |
| JAAN URB OÜ | 12188523 |
| KRB HOLDING OÜ | 11697582 |
| ARB TRADE OÜ kustutatud | 12581841 |
| ERB SERVICES OÜ | 11433995 |
| PRB EESTI OÜ (former name Sisuturundusagentuur Kuu ja Tähed OÜ) | 12393430 |
| URB ADVISORY OÜ | 16518673 |
| URB KONSULTATSIOONID OÜ (former name AUDIITORBÜROO URB) | 12214350 |
| ERB CAPITAL OÜ | 11307003 |
| AA SRB OÜ | 14210646 |
| HRB ALAPRO OÜ kustutatud | 16505245 |
| TDMK URB OÜ | 12712378 |
| TRB GROUP OÜ | 17109988 |
| VRB TECH OÜ | 17104583 |
| JRB CONSULTING OÜ | 12173088 |
| DRB INVESTMENTS OÜ | 17323440 |
| STUDIO RRB OÜ | 16362886 |
| SRB CITYVISION OÜ kustutatud (former name CityVision OÜ) | 14004929 |
| BRB ASSOCIATES OÜ | 17171148 |
| LRB RAKETIS OÜ | 17454780 |
| URB&CO OÜ kustutatud (former name URB & CO OÜ) | 12498459 |
| MRB CONSTRUCTION OÜ | 14106370 |
| QRX RENTAL OÜ | 17344703 |
| URB INVEST OÜ | 12043575 |
| SRB INVEST OÜ | 11455519 |
| NORDIC ARB OÜ | 12310349 |
| JRB MILLERWOOD OÜ | 16045173 |
| QTB LINGUA OÜ kustutatud | 12248432 |
| GRB GRUPP OÜ | 17002210 |
| ARB KINNISVARAHALDUS OÜ (former name ARB Capital OÜ) | 14099338 |
| JRB COMPANY OÜ | 14479868 |
| MRB INVEST OÜ | 12338017 |