| Company name | Reg. code |
|---|---|
| TTH INVEST OÜ | 14590181 |
| TRH INVEST OÜ | 12190170 |
| RTH INVEST OÜ | 12388015 |
| BTH INVEST OÜ (former name OÜ Baltic Ticket Holdings) | 11373603 |
| TTG INVEST OÜ | 12035280 |
| ETH-INVEST OÜ | 14962599 |
| KR PUHJAST OÜ (former name TT Invest OÜ) | 12014786 |