| Company name | Reg. code |
|---|---|
| Q-TECHNOLOGY OÜ | 17461461 |
| QNWIS TECHNOLOGY OÜ kustutatud | 14404327 |
| QLANE TECHNOLOGY OÜ kustutatud | 16701756 |
| QPC TECHNOLOGY GROUP OÜ | 10341788 |
| QUANTCORE TECHNOLOGY OÜ | 17253900 |
| TITAN QUANTUM TECHNOLOGY GROUP OÜ (former name T-COIN OÜ) | 16399518 |