| Company name | Reg. code |
|---|---|
| GRB OÜ | 16930422 |
| GRB GRUPP OÜ | 17002210 |
| IRB OÜ | 17035793 |
| MRB OÜ | 11484165 |
| ARB OÜ kustutatud | 16492241 |
| GBR OÜ | 17012013 |
| HRB OÜ | 12983060 |
| DRB OÜ kustutatud | 14501198 |
| GRU OÜ | 14894001 |
| GRY OÜ | 16808046 |
| GRW OÜ | 16970675 |
| BRB OÜ | 14813445 |
| GRS OÜ | 12143555 |
| GRA OÜ | 10091890 |
| GRG OÜ kustutatud | 16076494 |
| GRS 24 OÜ kustutatud | 14584051 |
| GRC INVEST OÜ | 16473083 |
| MRB BUSINESS OÜ | 16027124 |
| SAGE ORB OÜ | 16257863 |
| GSB GLOBAL OÜ | 14696175 |
| CONSULT GRG OÜ | 16492011 |
| GRI HALDUS OÜ | 14667570 |
| GRT VENTURES OÜ | 17307211 |
| GRT SOLUTIONS OÜ | 16013174 |
| GRD HOLDINGS OÜ | 16789136 |
| KRB HOLDING OÜ | 11697582 |
| CKOTS GRU OÜ (former name TIAN STOCK OÜ) | 10864888 |
| GLB BUSINESS OÜ | 14988529 |
| ARB TRADE OÜ kustutatud | 12581841 |
| GRE KONSULTATSIOON OÜ | 10196837 |
| ERB SERVICES OÜ | 11433995 |
| MAJUR GRG OÜ | 17371522 |
| GRI NORDIC OÜ (former name NORTIRE OÜ) | 10622257 |
| SVD GRU OÜ | 12331593 |
| GRA LEGAL OÜ | 14349628 |
| GRV GRUPP OÜ | 17420640 |
| GRK ILUTEENUSED OÜ | 16540916 |
| ERB CAPITAL OÜ | 11307003 |
| GRE STORE OÜ kustutatud | 12256928 |
| HRB ALAPRO OÜ kustutatud | 16505245 |
| GRF COMPANY OÜ | 12904557 |
| GRR3 EUROPE OÜ | 14754731 |
| GRE&CO OÜ (former name MetEnergie OÜ) | 16588260 |
| GPB HALDUS OÜ | 16429478 |
| JRB CONSULTING OÜ | 12173088 |
| GRN WOODWORKS OÜ | 17208845 |
| DRB INVESTMENTS OÜ | 17323440 |
| GRL DIGITAL OÜ (former name RAK-Finvest OÜ) | 14004444 |
| GRV-ROYALTY OÜ kustutatud | 12191809 |
| BRB ASSOCIATES OÜ | 17171148 |