| Company name | Reg. code |
|---|---|
| RUGBY OÜ | 11315103 |
| RUBY OÜ kustutatud (former name Ruby Reisid) | 11669812 |
| RUBY OÜ | 16079728 |
| RUUBY DISAIN OÜ | 16725550 |
| ROAMING RUBY OÜ | 16859799 |
| RUBY CONSULTING OÜ kustutatud | 16399524 |
| RUBY CAPITAL OÜ kustutatud | 12134697 |
| RUBY FOX OÜ | 14217759 |
| RUBY GRUPP OÜ | 12084172 |
| RUBY ROUSE GROUP OÜ | 12617036 |
| RUBY HEART VENTURES OÜ | 16834210 |
| BUMERING OÜ kustutatud (former name Ruby & Marcus OÜ) | 16332589 |
| OFFROADER ESTONIA OÜ (former name Ruby Invest OÜ) | 14043125 |
| RUBYMET OÜ (former name Ruby Group OÜ) | 14706502 |
| LRA OÜ (former name Ruby Wolf Atelier OÜ) | 16860791 |