| Company name | Reg. code |
|---|---|
| BLACKSTAR OÜ | 16781011 |
| BLACKSTAR PREMIUM OÜ (former name MARKETING ADVISORY OÜ) | 16100637 |
| BLACKBEAR OÜ kustutatud | 16034136 |
| BLACKSTACK OÜ | 17459895 |
| BLANKSTER OÜ kustutatud | 14114658 |
| BLACKSTORK OÜ | 16910613 |
| BLACKBAR OÜ | 14369818 |
| BLACKSWAN INVEST OÜ | 16329185 |
| VIRTUAL BLACKSWAN OÜ | 16996993 |
| BLACKSWAN STUDIO OÜ kustutatud | 14245596 |
| BLACKBEAR EHITUS OÜ | 14997304 |
| BLAKESTAR UÜ kustutatud (former name Blakestar OÜ) | 11353581 |
| CLARKSTAR OÜ | 10953445 |
| BROCKSTAR OÜ (former name Brockstart OÜ) | 11153480 |
| BROCKSTAR FINANCIAL SVCS OÜ (former name OÜ Tekeport) | 14135655 |