| Company name | Reg. code |
|---|---|
| BLACKDOT OÜ kustutatud | 12181260 |
| BLACKDOG PRODUCTIONS OÜ | 17471695 |
| BLACKCAT OÜ | 12614919 |
| BLACKOUT OÜ | 12560187 |
| BLACKHAT SOFTWARES OÜ kustutatud | 16133967 |
| BLACKFOX STRATEGIC SOLUTIONS OÜ kustutatud (former name PWR Consult OÜ) | 12446942 |
| BLACKFORT TECH ESTONIA OÜ kustutatud | 14883859 |
| THE NEW BLACKBOX OÜ | 14703745 |
| MMAETROCKTER OÜ (former name BLACKROC GROUP OÜ) | 12590722 |
| ART-TIME OÜ (former name BlackFox OÜ) | 12872171 |