| Company name | Reg. code |
|---|---|
| BLACKHORN OÜ (former name Öine Täht OÜ) | 16907251 |
| BLACKHOLM OÜ | 14729393 |
| BLACKBURN OÜ | 12422522 |
| BLACKMOON OÜ (former name Kleebime OÜ) | 14963570 |
| BLACKFORD OÜ | 14441274 |
| BLACKHOLE CONSULTING OÜ kustutatud | 16240154 |
| BLACKBARN EVENTS OÜ kustutatud | 16767235 |
| BLACKTOWN MEDIA OÜ | 14216525 |
| BLACKFORT TECH ESTONIA OÜ kustutatud | 14883859 |
| FMB FORRESTER MERCIER BLACKMORE CAPITAL OÜ | 14431933 |